private static int dividers(int n){ // assumes n >= 1
		int count=1; // 1 is always a divider
		int i=0;
		for (i=2;i<=Math.sqrt(n);i++){
			if (n%i == 0){
				if (i == Math.sqrt(n))
					count+=1;
				else
					count+=2;
			}
		}
		return count;
	}