81291959

素因数分解:

$7^1\times {\mathrm{23}}^2\times {\mathrm{29}}^1\times {\mathrm{757}}^1$

素因数の和:839

約数の個数: 24

約数和(自身を含む): 100601760

約数和(自身を除く): 19309801

約数列:

[1, 7, 23, 29, 161, 203, 529, 667, 757, 3703, 4669, 5299, 15341, 17411, 21953, 107387, 121877, 153671, 400453, 504919, 2803171, 3534433, 11613137, 81291959]

約数ペア:

[(1, 81291959), (7, 11613137), (23, 3534433), (29, 2803171), (161, 504919), (203, 400453), (529, 153671), (667, 121877), (757, 107387), (3703, 21953), (4669, 17411), (5299, 15341)]