81821894

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{4391}}^1$

素因数の和:4433

約数の個数: 32

約数和(自身を含む): 154317312

約数和(自身を除く): 72495418

約数列:

[1, 2, 7, 11, 14, 22, 77, 121, 154, 242, 847, 1331, 1694, 2662, 4391, 8782, 9317, 18634, 30737, 48301, 61474, 96602, 338107, 531311, 676214, 1062622, 3719177, 5844421, 7438354, 11688842, 40910947, 81821894]

約数ペア:

[(1, 81821894), (2, 40910947), (7, 11688842), (11, 7438354), (14, 5844421), (22, 3719177), (77, 1062622), (121, 676214), (154, 531311), (242, 338107), (847, 96602), (1331, 61474), (1694, 48301), (2662, 30737), (4391, 18634), (8782, 9317)]