题解 | #质数因子#

import java.util.*;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
           Scanner in = new Scanner(System.in);
        int i = in.nextInt();
        int j = 2;
        int n = 1;
        ArrayList<Integer> arrayList = new ArrayList<>();

        if (i<=j){
            arrayList.add(i);
        }else {
            while (true) {
                if (i % j == 0) {
                    i = i / j;
                    arrayList.add(j);
                }
                if (i % j != 0) {
                    j=n*2+1;
                    n++;
                }
                if (j >= i) {
                    arrayList.add(j);
                    break;
                }
            }

        }

        arrayList.stream().forEach((k)-> System.out.print(k+" "));
    }
}