40218321

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{389}}^1$

素因数の和:657

約数の個数: 32

約数和(自身を含む): 63423360

約数和(自身を除く): 23205039

約数列:

[1, 3, 11, 13, 33, 39, 143, 241, 389, 429, 723, 1167, 2651, 3133, 4279, 5057, 7953, 9399, 12837, 15171, 34463, 55627, 93749, 103389, 166881, 281247, 1031239, 1218737, 3093717, 3656211, 13406107, 40218321]

約数ペア:

[(1, 40218321), (3, 13406107), (11, 3656211), (13, 3093717), (33, 1218737), (39, 1031239), (143, 281247), (241, 166881), (389, 103389), (429, 93749), (723, 55627), (1167, 34463), (2651, 15171), (3133, 12837), (4279, 9399), (5057, 7953)]