20128801

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{3581}}^1$

素因数の和:3672

約数の個数: 16

約数和(自身を含む): 25446528

約数和(自身を除く): 5317727

約数列:

[1, 7, 11, 73, 77, 511, 803, 3581, 5621, 25067, 39391, 261413, 275737, 1829891, 2875543, 20128801]

約数ペア:

[(1, 20128801), (7, 2875543), (11, 1829891), (73, 275737), (77, 261413), (511, 39391), (803, 25067), (3581, 5621)]