N = int(input())
results = []
for x in range(1, int(N**0.5)+1):
    if N % x == 0:
        y, z = divmod(N, x)
        if z == 0 and y != x:
            results.append((x, y, 0))
            results.append((y, x, 0))
print(len(results))
for result in results:
    print(*result)