20007836

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{6421}}^1$

素因数の和:6485

約数の個数: 24

約数和(自身を含む): 37761360

約数和(自身を除く): 17753524

約数列:

[1, 2, 4, 19, 38, 41, 76, 82, 164, 779, 1558, 3116, 6421, 12842, 25684, 121999, 243998, 263261, 487996, 526522, 1053044, 5001959, 10003918, 20007836]

約数ペア:

[(1, 20007836), (2, 10003918), (4, 5001959), (19, 1053044), (38, 526522), (41, 487996), (76, 263261), (82, 243998), (164, 121999), (779, 25684), (1558, 12842), (3116, 6421)]