[BAEKJOON] No.9506 Python

https://www.acmicpc.net/problem/9506

약수들의 합

9506번: 약수들의 합

 

import sys

while True : 

  n = int(input())
  if n==-1 :break
  
  sum =0
  sumn = []
  
  for i in range(1,n) :
    if n%i == 0 :
      sum+=i
      sumn.append(i)
      
  if sum != n : print(f"{n} is NOT perfect.",end=" ")
  else :
    print(f"{n} = 1",end=" ")
    for k in range(len(sumn)) :
      if k==0 : continue
      else : print(f"+ {sumn[k]}", end=" ")
      
  print()