Q: What is the sum of all factors of the number 420,489 excluding 420,489?
A: 219,111
The factors of the number 420,489 are: 1, 3, 9, 19, 57, 171, 2459, 7377, 22131, 46721, 140163, 420489.
If you add them up, you will get the total of 420,708. Now subtract 420,489 to get 219,111