#include <cstdio>

long long read()
{
    char last = '+', ch = getchar();
    while (ch < '0' || ch > '9') last = ch, ch = getchar();
    long long tmp = 0;
    while (ch >= '0' && ch <= '9') tmp = tmp * 10 + ch - 48, ch = getchar();
    if (last == '-') tmp = -tmp;
    return tmp;
}

int T;
int ansn;
int ans[1000000];

int main()
{
    scanf("%d", &T);
    while (T--)
    {
        int x = read();
        int tmp = x;
        int s = 0;
        while (tmp)
        {
            s += tmp % 10;
            tmp /= 10;
        }
        ansn = 0;
        for (int i = 1; i <= s; i++)
        {
            if (s % i == 0 && x % i == 0)
            {
                ansn++;
                ans[ansn] = i;
            }
        }
        printf("%d\n", ansn);
        for (int i = 1; i <= ansn; i++)
        {
            if (i != 1)
            {
                printf(" ");
            }
            printf("%d", ans[i]);
        }
        puts("");
    }
    return 0;
}