81331684

素因数分解:

$2^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{28201}}^1$

素因数の和:28315

約数の個数: 24

約数和(自身を含む): 164248448

約数和(自身を除く): 82916764

約数列:

[1, 2, 4, 7, 14, 28, 103, 206, 412, 721, 1442, 2884, 28201, 56402, 112804, 197407, 394814, 789628, 2904703, 5809406, 11618812, 20332921, 40665842, 81331684]

約数ペア:

[(1, 81331684), (2, 40665842), (4, 20332921), (7, 11618812), (14, 5809406), (28, 2904703), (103, 789628), (206, 394814), (412, 197407), (721, 112804), (1442, 56402), (2884, 28201)]