解题思路

#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
using namespace std;

int main() {
int a;
cin >> a;

vector<int> factors;

// 方法1：简单遍历
for (int i = 1; i <= a; i++) {
    if (a % i == 0) {
        factors.push_back(i);
    }
}

// 排序并输出
for (int factor : factors) {
    cout << factor << endl;
}

return 0;

}