Q: What is the sum of all factors of the number 204,309 excluding 204,309?
A: 164,331
The factors of the number 204,309 are: 1, 3, 7, 9, 21, 23, 27, 47, 63, 69, 141, 161, 189, 207, 329, 423, 483, 621, 987, 1081, 1269, 1449, 2961, 3243, 4347, 7567, 8883, 9729, 22701, 29187, 68103, 204309.
If you add them up, you will get the total of 204,473. Now subtract 204,309 to get 164,331