Q: What is the sum of all factors of the number 16,405 excluding 16,405?
A: 4,547
The factors of the number 16,405 are: 1, 5, 17, 85, 193, 965, 3281, 16405.
If you add them up, you will get the total of 16,409. Now subtract 16,405 to get 4,547