21018591

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{7321}}^1$

素因数の和:7367

約数の個数: 24

約数和(自身を含む): 34266960

約数和(自身を除く): 13248369

約数列:

[1, 3, 9, 11, 29, 33, 87, 99, 261, 319, 957, 2871, 7321, 21963, 65889, 80531, 212309, 241593, 636927, 724779, 1910781, 2335399, 7006197, 21018591]

約数ペア:

[(1, 21018591), (3, 7006197), (9, 2335399), (11, 1910781), (29, 724779), (33, 636927), (87, 241593), (99, 212309), (261, 80531), (319, 65889), (957, 21963), (2871, 7321)]