81286723

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{2647}}^1$

素因数の和:2802

約数の個数: 16

約数和(自身を含む): 96090624

約数和(自身を除く): 14803901

約数列:

[1, 7, 41, 107, 287, 749, 2647, 4387, 18529, 30709, 108527, 283229, 759689, 1982603, 11612389, 81286723]

約数ペア:

[(1, 81286723), (7, 11612389), (41, 1982603), (107, 759689), (287, 283229), (749, 108527), (2647, 30709), (4387, 18529)]