#include <stdio.h>
#include <algorithm>
#include <iostream>
#include <string>
#include <vector>
#include <functional>
#include <map>
#include <iomanip>
#include <math.h> 
#include <stack>
#include <queue>
#include <bitset>
#include <cstdlib>
#include <tuple>
#include <cctype>
#include <ctype.h>
#include <set>
#include <sstream>

using namespace std;



int main() {
	long long i, j, k;
	long long n;
	map<long long, int>mp;

	cin >> n;

	long cnt = 0;

	for (i = 1; i <= n/2; i++) {
		if (n % i == 0) {
			if (mp.count(n / i) != 0) continue;

			if (i == (n / i)) {
				cnt++;
				//cout << i << " " << n / i << endl;
				mp.insert(make_pair(i, 0));
				mp.insert(make_pair( n / i, 0));
			}
			else {
				if ((to_string(i) + to_string(n / i)) == (to_string(n / i) + to_string( i ))) {
					cnt++;
					//cout << i << " " << n / i << endl;
					mp.insert(make_pair(i, 0));
					mp.insert(make_pair(n / i, 0));
				}
				else {
					cnt += 2;
					//cout << i << " " << n / i << endl;
					mp.insert(make_pair(i, 0));
					mp.insert(make_pair(n / i, 0));
				}
			}

		}
	}


	cout << cnt << endl;










	getchar();
	getchar();
	return 0;
}