#include <bits/stdc++.h>
using namespace std;
int T,v;
inline int get(int x) {
    int ret=0;
    while (x) {
        ret+=x%10;
        x/=10;
    }
    return ret;
}
int main()
{
    scanf("%d",&T);
    while (T--) {
        scanf("%d",&v);
        int num=get(v);
        vector<int> ans;
        for (int i=1;i<=num;++i)
            if (v%i==0&&num%i==0)
                ans.push_back(i);
        printf("%d\n",ans.size());
        for (int i=0;i<(int)ans.size();++i)
            printf("%d%c",ans[i],i+1==(int)ans.size()?'\n':' ');
    }
    return 0;
}