Q: What is the sum of all factors of the number 421,216 excluding 421,216?
A: 408,116
The factors of the number 421,216 are: 1, 2, 4, 8, 16, 32, 13163, 26326, 52652, 105304, 210608, 421216.
If you add them up, you will get the total of 421,624. Now subtract 421,216 to get 408,116