81328366

素因数分解:

$2^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{18679}}^1$

素因数の和:18999

約数の個数: 16

約数和(自身を含む): 139875840

約数和(自身を除く): 58547474

約数列:

[1, 2, 7, 14, 311, 622, 2177, 4354, 18679, 37358, 130753, 261506, 5809169, 11618338, 40664183, 81328366]

約数ペア:

[(1, 81328366), (2, 40664183), (7, 11618338), (14, 5809169), (311, 261506), (622, 130753), (2177, 37358), (4354, 18679)]