Q: What is the sum of all factors of the number 400,869 excluding 400,869?
A: 302,625
The factors of the number 400,869 are: 1, 3, 7, 9, 21, 27, 49, 63, 81, 101, 147, 189, 303, 441, 567, 707, 909, 1323, 2121, 2727, 3969, 4949, 6363, 8181, 14847, 19089, 44541, 57267, 133623, 400869.
If you add them up, you will get the total of 401,171. Now subtract 400,869 to get 302,625