Q: What is the sum of all factors of the number 198,009 excluding 198,009?
A: 135,441
The factors of the number 198,009 are: 1, 3, 7, 9, 21, 49, 63, 147, 441, 449, 1347, 3143, 4041, 9429, 22001, 28287, 66003, 198009.
If you add them up, you will get the total of 198,144. Now subtract 198,009 to get 135,441