215697262

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{891311}}^1$

素因数の和:891335

約数の個数: 12

約数和(自身を含む): 355633488

約数和(自身を除く): 139936226

約数列:

[1, 2, 11, 22, 121, 242, 891311, 1782622, 9804421, 19608842, 107848631, 215697262]

約数ペア:

[(1, 215697262), (2, 107848631), (11, 19608842), (22, 9804421), (121, 1782622), (242, 891311)]