Q: What is the sum of all factors of the number 20,009 excluding 20,009?
A: 3,319
The factors of the number 20,009 are: 1, 11, 17, 107, 187, 1177, 1819, 20009.
If you add them up, you will get the total of 20,012. Now subtract 20,009 to get 3,319