Q: What is the sum of all factors of the number 1,389,399 excluding 1,389,399?
A: 663,465
The factors of the number 1,389,399 are: 1, 3, 11, 33, 71, 213, 593, 781, 1779, 2343, 6523, 19569, 42103, 126309, 463133, 1389399.
If you add them up, you will get the total of 1,390,062. Now subtract 1,389,399 to get 663,465