81868556

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{265807}}^1$

素因数の和:265829

約数の個数: 24

約数和(自身を含む): 178622976

約数和(自身を除く): 96754420

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 265807, 531614, 1063228, 1860649, 2923877, 3721298, 5847754, 7442596, 11695508, 20467139, 40934278, 81868556]

約数ペア:

[(1, 81868556), (2, 40934278), (4, 20467139), (7, 11695508), (11, 7442596), (14, 5847754), (22, 3721298), (28, 2923877), (44, 1860649), (77, 1063228), (154, 531614), (308, 265807)]