Q: What is the sum of all factors of the number 211,869 excluding 211,869?
A: 172,131
The factors of the number 211,869 are: 1, 3, 7, 9, 19, 21, 27, 57, 59, 63, 133, 171, 177, 189, 399, 413, 513, 531, 1121, 1197, 1239, 1593, 3363, 3591, 3717, 7847, 10089, 11151, 23541, 30267, 70623, 211869.
If you add them up, you will get the total of 212,041. Now subtract 211,869 to get 172,131