Q: What is the sum of all factors of the number 81,993 excluding 81,993?
A: 28,663
The factors of the number 81,993 are: 1, 3, 151, 181, 453, 543, 27331, 81993.
If you add them up, you will get the total of 82,021. Now subtract 81,993 to get 28,663