#define _CRT_SECURE_NO_WARNINGS
#include "bits/stdc++.h"
using namespace std;
#define all(a) a.begin(), a.end()
#define int long long
const int inf = LLONG_MAX;
signed main() {
#ifdef _DEBUG
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif
    //a[i] / x = (1 + x)^(i - 2)
    int m; cin >> m;
    int res = 2;
    auto try_solve = [&](int x) {
        int d = m / x;
        int y = 1;
        int cnt = 2;
        while (1) {
            if (d % (1 + x) == 0) {
                d /= (1 + x);
                cnt++;
            }
            else {
                break;
            }
        }
        return cnt;
    };
    for (int i = 2; i * i * i <= m; i++) {
        if (m % i == 0) {
            res = max({ res, try_solve(m / i), try_solve(i) });
        }
    }
    int tl = 0, tr = (int)sqrt(m) + 1;
    while (tr - tl > 1) {
        int tm = (tr + tl) / 2;
        if (tm * (tm + 1) >= m) {
            tr = tm;
        }
        else {
            tl = tm;
        }
    }
    if (tr * (tr + 1) == m) {
        res = max(res, 3ll);
    }
    cout << res << '\n';
    return 0;
}