Q: What is the sum of all factors of the number 161,421 excluding 161,421?
A: 70,419
The factors of the number 161,421 are: 1, 3, 13, 39, 4139, 12417, 53807, 161421.
If you add them up, you will get the total of 161,491. Now subtract 161,421 to get 70,419