Q: What is the sum of all factors of the number 399,822 excluding 399,822?
A: 421,890
The factors of the number 399,822 are: 1, 2, 3, 6, 37, 74, 111, 222, 1801, 3602, 5403, 10806, 66637, 133274, 199911, 399822.
If you add them up, you will get the total of 400,243. Now subtract 399,822 to get 421,890