Q: What is the sum of all factors of the number 643,431 excluding 643,431?
A: 221,209
The factors of the number 643,431 are: 1, 3, 139, 417, 1543, 4629, 214477, 643431.
If you add them up, you will get the total of 643,652. Now subtract 643,431 to get 221,209