Q: What is the sum of all factors of the number 21,233,121 excluding 21,233,121?
A: 15,232,287
The factors of the number 21,233,121 are: 1, 3, 7, 13, 21, 39, 41, 49, 91, 123, 147, 271, 273, 287, 533, 637, 813, 861, 1599, 1897, 1911, 2009, 3523, 3731, 5691, 6027, 10569, 11111, 11193, 13279, 24661, 26117, 33333, 39837, 73983, 77777, 78351, 144443, 172627, 233331, 433329, 517881, 544439, 1011101, 1633317, 3033303, 7077707, 21233121.
If you add them up, you will get the total of 21,233,136. Now subtract 21,233,121 to get 15,232,287