Q: What is the sum of all factors of the number 20,178 excluding 20,178?
A: 26,622
The factors of the number 20,178 are: 1, 2, 3, 6, 9, 18, 19, 38, 57, 59, 114, 118, 171, 177, 342, 354, 531, 1062, 1121, 2242, 3363, 6726, 10089, 20178.
If you add them up, you will get the total of 20,204. Now subtract 20,178 to get 26,622