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#include <iostream>

long long f(long n)
{
    n -= 1;
    long long result = 0;
    for (long long i=2;i*i <=n;++i)
    {
        if (n%i != 0) continue;
        if (n/i > 2) ++result;
        if (i*i == n) continue;
        if (n/i > 1 && i > 2) ++result;
    }
    return result;
}

int main()
{
    long long n;
    std::cin >> n;

    long long result = 0;
    for (long long i=1; i*i <= n; ++i)
    {
        if (n%i != 0) continue;
        result += f(i);
        if (i*i == n) continue;
        result += f(n/i);
    }

    std::cout << result << std::endl;
    return 0;
}