Q: What is the sum of all factors of the number 16,991,489 excluding 16,991,489?
A: 278,611
The factors of the number 16,991,489 are: 1, 61, 278549, 16991489.
If you add them up, you will get the total of 16,991,767. Now subtract 16,991,489 to get 278,611