20409363

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{9181}}^1$

素因数の和:9219

約数の個数: 24

約数和(自身を含む): 33422480

約数和(自身を除く): 13013117

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 9181, 27543, 82629, 119353, 174439, 358059, 523317, 1074177, 1569951, 2267707, 6803121, 20409363]

約数ペア:

[(1, 20409363), (3, 6803121), (9, 2267707), (13, 1569951), (19, 1074177), (39, 523317), (57, 358059), (117, 174439), (171, 119353), (247, 82629), (741, 27543), (2223, 9181)]