Q: What is the sum of all factors of the number 213,003 excluding 213,003?
A: 170,997
The factors of the number 213,003 are: 1, 3, 7, 9, 21, 23, 27, 49, 63, 69, 147, 161, 189, 207, 343, 441, 483, 621, 1029, 1127, 1323, 1449, 3087, 3381, 4347, 7889, 9261, 10143, 23667, 30429, 71001, 213003.
If you add them up, you will get the total of 213,173. Now subtract 213,003 to get 170,997