#include <algorithm>
#include <complex>
#include <cstdlib>
#include <ctime>
#include <time.h>
#include <iomanip>
#include <iostream>
#include <map>
#include <math.h>
#include <queue>
#include <random>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <vector>

using namespace std;
#define SAY_YES cout << "YES" << endl;
#define SAY_Yes cout << "Yes" << endl;
#define SAY_NO cout << "NO" << endl;
#define SAY_No cout << "No" << endl;
#define IFYES(TRUE_OR_FALSE)   \
    if (TRUE_OR_FALSE)         \
    {                          \
        cout << "YES" << endl; \
    }                          \
    else                       \
    {                          \
        cout << "NO" << endl;  \
    }
#define IFYes(TRUE_OR_FALSE)   \
    if (TRUE_OR_FALSE)         \
    {                          \
        cout << "Yes" << endl; \
    }                          \
    else                       \
    {                          \
        cout << "No" << endl;  \
    }
#define IFyes(TRUE_OR_FALSE)   \
    if (TRUE_OR_FALSE)         \
    {                          \
        cout << "yes" << endl; \
    }                          \
    else                       \
    {                          \
        cout << "no" << endl;  \
    }
#define DEBUG_OUTPUT_ARRAY(XXX, ONE)                            \
    for (int i = 0; i < (ONE); i++)                             \
    {                                                           \
        cout << "DEBUG: i = " << i << " -> " << XXX[i] << endl; \
    }
#define DEBUG_OUTPUT_ARRAY2(XXX, ONE, TWO)                             \
    for (int i = 0; i < (ONE); i++)                                    \
    {                                                                  \
        cout << "<<< i = " << i << " >>>" << endl;                     \
        for (int j = 0; j < (TWO); j++)                                \
        {                                                              \
            cout << "DEBUG: j = " << j << " -> " << XXX[i][j] << endl; \
        }                                                              \
    }
#define DEBUG_OUTPUT_ARRAY2_BOX(XXX, ONE, TWO) \
    for (int i = 0; i < (ONE); i++)            \
    {                                          \
        cout << i << "  ";                     \
        for (int j = 0; j < (TWO); j++)        \
        {                                      \
            cout << XXX[i][j] << " ";          \
        }                                      \
        cout << endl;                          \
    }

typedef pair<long long int, long long int> pll;


const long long int mod = 1000000007;
const long long int INF = 1e18;



long long int N,C,K,A[200200],sum=0,res=1;
vector<long long int>yakusuu,Kmemo;

int main()
{
    cout << fixed << setprecision(18);
    cin>>N;
    if(N==2){cout<<1<<endl;return 0;}
    long long int memo=N-1;
    for(long long int i = 2; i*i <= memo; i++){
        
        if(memo%i==0&&i*i!=memo){
            res+=2;
        }else if(memo%i==0){
            res++;
        }
    }
    memo=N;
    for(long long int i = 2; i*i <= N; i++){
        if(memo%i==0){memo/=i;}
        if(N%i==0&&i*i!=N){
            Kmemo.push_back(i);
            Kmemo.push_back(N/i);
        }else if(N%i==0){
            Kmemo.push_back(i);
        }
    }
    Kmemo.push_back(N);
    for(long long int j = 0; j < Kmemo.size(); j++){
        K=Kmemo[j];
        long long int tmp=N;
        while(tmp%K==0){
            tmp/=K;
            
            if((tmp-1)%K==0){res++;}
        }
        
    }
    cout<<res<<endl;

}


Measured memory_bytes: 384