Q: What is the sum of all factors of the number 20,889 excluding 20,889?
A: 12,183
The factors of the number 20,889 are: 1, 3, 9, 11, 33, 99, 211, 633, 1899, 2321, 6963, 20889.
If you add them up, you will get the total of 20,901. Now subtract 20,889 to get 12,183