/**
 * code generated by JHelper
 * More info: https://github.com/AlexeyDmitriev/JHelper
 * @author champon
 */

#include <iostream>
#include <fstream>

#include <bits/stdc++.h>
#define se cout << "test ok" << endl;
#define sp << " " <<
#define enl "\n";
using namespace std;
using ll=long long;
using ld=long double;
ll mod = ll(1e9)+7;
ll inf = ll(1e18);
template<typename T1, typename T2> ll ceill(T1 a, T2 b){ return (a+b-1)/b; }
void ans(bool b, ostream& out=cout){ out << (b ? "Yes" : "No") << endl; }
void ans2(bool b, ostream& out=cout){ out << (b ? "YES" : "NO") << endl; }
template<typename T> inline bool chmax(T &a, T b){ if(a<b){a=b; return true;} return false; }
template<typename T> inline bool chmin(T &a, T b){ if(a>b){a=b; return true;} return false; }
template<typename A, size_t N, typename T> void Fill(A (&array)[N], const T &val){ fill((T*)array, (T*)(array+N), val); }
int dx[] = {1, 0, -1, 0, 1, -1, 1, -1};
int dy[] = {0, 1, 0, -1, 1, -1, -1, 1};

#ifndef INCLUDE_DEBUG_HPP
#define INCLUDE_DEBUG_HPP

#include <iostream>
#include <vector>
#include <map>
using namespace std;

namespace dbg {
    using ll = long long;

    class Debug {
    public:
        Debug(){}
        template<typename T>
        void vd(vector<T> vec);
        template<typename T>
        void vd2(vector<vector<T>> vec);
        template<typename T>
        void ad(T *arr, ll n);
        template<typename T, size_t N>
        void ad2(T (&arr)[N], ll n);
        template<typename T>
        void md(T mp);
    };

    template<typename T>
    void Debug::vd(vector<T> vec) {
        for (auto vv : vec) cout << vv << " ";
        cout << endl;
    }

    template<typename T>
    void Debug::vd2(vector<vector<T>> vec) {
        for (auto vv : vec) for (auto vvv : vv) cout << vvv << " ";
        cout << endl;
    }

    template<typename T>
    void Debug::ad(T *arr, ll n) {
        for (int i = 0; i <= n; i++) cout << arr[i] << " ";
        cout << endl;
    }

    template<typename T, size_t N>
    void Debug::ad2(T (&arr)[N], ll n) {
        for (int i = 0; i <= N; i++) for (int j = 0; j <= n; j++) cout << arr[i][j] << " ";
        cout << endl;
    }

    template<typename T>
    void Debug::md(T mp) {
        cout << "key : value" << endl;
        for (auto const &m : mp) cout << m.first << " : " << m.second << endl;
        cout << endl;
    }

}

#endif //INCLUDE_DEBUG_HPP

using dbg::Debug;
Debug debug;

#ifndef INCLUDE_FACTOR_HPP
#define INCLUDE_FACTOR_HPP



using namespace std;

namespace factor {

    using ll = long long;

    class Factor {
    public:
        // Get factors with map
        template<typename T>map<ll, ll> factorMap(T n);

        // Get factors with vector
        template<typename T> vector<ll> factorVec(T n);

        // Get divisors
        template<typename T> vector<ll> divisor(T n);
    };

    template<typename T>
    map<ll, ll> Factor::factorMap(T n) {
        map<ll, ll> res;
        ll buf = n;
        for (ll i = 2; i*i<=n; i++) {
            while (buf % i == 0) {
                res[i]++;
                buf /= i;
            }
        }
        if(buf > 1) res[buf]++;
        return res;
    }

    template<typename T>
    vector<ll> Factor::factorVec(T n){
        vector<ll> res;
        ll buf = n;
        for(ll i=2; i*i<=n; i++){
            while(buf%i == 0){
                res.push_back(i);
                buf /= i;
            }
        }
        if(buf > 1) res.push_back(buf);
        return res;
    }

    template<typename T>
    vector<ll> Factor::divisor(T n){
        vector<ll> res;
        for(ll i=2; i*i<=n; i++){
            if(n%i == 0){
                if(i*i == n) res.push_back(i);
                else{
                    res.push_back(i);
                    res.push_back(n/i);
                }
            }
        }
        return res;
    }
}

#endif //INCLUDE_FACTOR_HPP
using factor::Factor;

class FDivisionOrSubstraction {
public:
	void solve(std::istream& in, std::ostream& out) {
	    ll n;
	    in >> n;

        ll res = 0;
        Factor f;

        ll buf = n-1;
        vector<ll> fac = f.divisor(n-1);
        if(buf > 1) fac.push_back(buf);
        res = fac.size();

        fac = f.divisor(n);

        for(auto& e : fac){
            ll buf2 = n;
            while(buf2%e == 0) buf2 /= e;
            if(buf2%e == 1) res++;
        }
        //debug.vd(fac);

        out << res+1 << endl;
	}
};


int main() {
	FDivisionOrSubstraction solver;
	std::istream& in(std::cin);
	std::ostream& out(std::cout);
	solver.solve(in, out);
	return 0;
}


Measured memory_bytes: 384