Q: What is the sum of all factors of the number 420,039 excluding 420,039?
A: 217,401
The factors of the number 420,039 are: 1, 3, 9, 27, 47, 141, 331, 423, 993, 1269, 2979, 8937, 15557, 46671, 140013, 420039.
If you add them up, you will get the total of 420,256. Now subtract 420,039 to get 217,401