#include <bits/stdc++.h>
using namespace std;
#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")

int main() {
	int N;
	cin >> N;
	int ans = 0;
	for (int i = 2; i <= N; i++){
		if (N % i != 0){
			ans++;
		}
	}
	cout << ans << endl;
}