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#include <iostream> using namespace std; int rec(int number, int i) { if(i > number) { return 0; } if(number % i == 0) { return rec(number, i + 1) + 1; } else { return rec(number, i + 1); } } int main() { int n; cin >> n; cout << rec(n, 1) << endl; return 0; } /* rec(5, 1) = rec(5, 2) + 1 = 1 + 1 = 2 rec(5, 2) = rec(5, 3) = 1 rec(5, 3) = rec(5, 4) = 1 rec(5, 4) = rec(5, 5) = 1 rec(5, 5) = rec(5, 6) + 1 = 0 + 1 = 1 rec(5, 6) = 0 **/
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