21287396

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{2287}}^1$

素因数の和:2483

約数の個数: 24

約数和(自身を含む): 40360320

約数和(自身を除く): 19072924

約数列:

[1, 2, 4, 13, 26, 52, 179, 358, 716, 2287, 2327, 4574, 4654, 9148, 9308, 29731, 59462, 118924, 409373, 818746, 1637492, 5321849, 10643698, 21287396]

約数ペア:

[(1, 21287396), (2, 10643698), (4, 5321849), (13, 1637492), (26, 818746), (52, 409373), (179, 118924), (358, 59462), (716, 29731), (2287, 9308), (2327, 9148), (4574, 4654)]