280486521

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{153523}}^1$

素因数の和:153565

約数の個数: 24

約数和(自身を含む): 478994880

約数和(自身を除く): 198508359

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 153523, 460569, 1074661, 1381707, 3223983, 4452167, 9671949, 13356501, 31165169, 40069503, 93495507, 280486521]

約数ペア:

[(1, 280486521), (3, 93495507), (7, 40069503), (9, 31165169), (21, 13356501), (29, 9671949), (63, 4452167), (87, 3223983), (203, 1381707), (261, 1074661), (609, 460569), (1827, 153523)]