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

int main(){
    int n,ans=0;
    cin>>n;
    for(int i=1;i*i<=n;i++){
        if(n%i==0&&(i&n/i)==i)ans+=1<<__builtin_popcount(i)-1;
    }
    cout<<ans<<endl;
}