21998810

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{947}}^1$

素因数の和:1078

約数の個数: 32

約数和(自身を含む): 41772672

約数和(自身を除く): 19773862

約数列:

[1, 2, 5, 10, 23, 46, 101, 115, 202, 230, 505, 947, 1010, 1894, 2323, 4646, 4735, 9470, 11615, 21781, 23230, 43562, 95647, 108905, 191294, 217810, 478235, 956470, 2199881, 4399762, 10999405, 21998810]

約数ペア:

[(1, 21998810), (2, 10999405), (5, 4399762), (10, 2199881), (23, 956470), (46, 478235), (101, 217810), (115, 191294), (202, 108905), (230, 95647), (505, 43562), (947, 23230), (1010, 21781), (1894, 11615), (2323, 9470), (4646, 4735)]