20993511

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{12983}}^1$

素因数の和:13011

約数の個数: 24

約数和(自身を含む): 35524224

約数和(自身を除く): 14530713

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 12983, 38949, 90881, 142813, 272643, 428439, 636167, 999691, 1908501, 2999073, 6997837, 20993511]

約数ペア:

[(1, 20993511), (3, 6997837), (7, 2999073), (11, 1908501), (21, 999691), (33, 636167), (49, 428439), (77, 272643), (147, 142813), (231, 90881), (539, 38949), (1617, 12983)]