20437516

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{11329}}^1$

素因数の和:11385

約数の個数: 24

約数和(自身を含む): 39972240

約数和(自身を除く): 19534724

約数列:

[1, 2, 4, 11, 22, 41, 44, 82, 164, 451, 902, 1804, 11329, 22658, 45316, 124619, 249238, 464489, 498476, 928978, 1857956, 5109379, 10218758, 20437516]

約数ペア:

[(1, 20437516), (2, 10218758), (4, 5109379), (11, 1857956), (22, 928978), (41, 498476), (44, 464489), (82, 249238), (164, 124619), (451, 45316), (902, 22658), (1804, 11329)]