81906526

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{7817}}^1$

素因数の和:7876

約数の個数: 24

約数和(自身を含む): 137346624

約数和(自身を除く): 55440098

約数列:

[1, 2, 13, 26, 31, 62, 169, 338, 403, 806, 5239, 7817, 10478, 15634, 101621, 203242, 242327, 484654, 1321073, 2642146, 3150251, 6300502, 40953263, 81906526]

約数ペア:

[(1, 81906526), (2, 40953263), (13, 6300502), (26, 3150251), (31, 2642146), (62, 1321073), (169, 484654), (338, 242327), (403, 203242), (806, 101621), (5239, 15634), (7817, 10478)]