Q: What is the sum of all factors of the number 78,421 excluding 78,421?
A: 16,619
The factors of the number 78,421 are: 1, 7, 17, 119, 659, 4613, 11203, 78421.
If you add them up, you will get the total of 78,437. Now subtract 78,421 to get 16,619