# 代码
def reduce(n):
    li = []
    for x in range(1, n):
        if n % x == 0:
            li.append(x)
    return li
for x in range(2, 1001):
    sum = 0
    li = reduce(x)
    for i in li:
        sum += i
    if sum == x:
        print(x)
        for i in li:
            print(i, end=" ")
        print("")
# 输出
6
1 2 3 
28
1 2 4 7 14 
496
1 2 4 8 16 31 62 124 248 
391644