#include <iostream>

using namespace std;

int prints_dividers(int n)
{
    if(n == 0)
        return 0;
    cout << 1 << '\t';
    int counter = 1;
    for(int i = 2; i < n; ++i)
    {
        if(n % i == 0)
        {
            cout << i << '\t';
            ++counter;
        }
    }

    if(n > 1)
    {
        cout << n << endl;
        ++counter;
    }
    else
        cout << endl;
    return counter;
}

int main()
{
    cout << "Please enter a number: ";
    int number;
    cin >> number;

    while(cin.fail() || number < 0)
    {
        cout << "You entered the wrong number. Please enter a natural number again: ";
        cin.clear();
        cin.ignore(9999, '\n');
        cin >> number;
    }

    int dividers = prints_dividers(number);
    cout << number << " has exactly " << dividers << " natural dividers.";
    if(dividers == 2)
        cout << " It is a prime number.\n";
    else
        cout << endl;
    return 0;
}