81812668

素因数分解:

$2^2\times 7^1\times {\mathrm{2921881}}^1$

素因数の和:2921892

約数の個数: 12

約数和(自身を含む): 163625392

約数和(自身を除く): 81812724

約数列:

[1, 2, 4, 7, 14, 28, 2921881, 5843762, 11687524, 20453167, 40906334, 81812668]

約数ペア:

[(1, 81812668), (2, 40906334), (4, 20453167), (7, 11687524), (14, 5843762), (28, 2921881)]