#include<bits/stdc++.h>
using namespace std;

int main(){
	cin.tie(0),ios::sync_with_stdio(false);
	int64_t n; cin>>n;
	unordered_map<int64_t,int64_t>m; ++m[1];
	int64_t t=n,ans=2;
	for(int64_t i=2;i*i<=n;++i){
		if(i*i==n)++ans;
		else if(t%i==0)ans+=2;
	}
	cout<<ans<<"\n"s;
}