20702396

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2129}}^1$

素因数の和:2174

約数の個数: 48

約数和(自身を含む): 45087840

約数和(自身を除く): 24385444

約数列:

[1, 2, 4, 11, 13, 17, 22, 26, 34, 44, 52, 68, 143, 187, 221, 286, 374, 442, 572, 748, 884, 2129, 2431, 4258, 4862, 8516, 9724, 23419, 27677, 36193, 46838, 55354, 72386, 93676, 110708, 144772, 304447, 398123, 470509, 608894, 796246, 941018, 1217788, 1592492, 1882036, 5175599, 10351198, 20702396]

約数ペア:

[(1, 20702396), (2, 10351198), (4, 5175599), (11, 1882036), (13, 1592492), (17, 1217788), (22, 941018), (26, 796246), (34, 608894), (44, 470509), (52, 398123), (68, 304447), (143, 144772), (187, 110708), (221, 93676), (286, 72386), (374, 55354), (442, 46838), (572, 36193), (748, 27677), (884, 23419), (2129, 9724), (2431, 8516), (4258, 4862)]