19716976

素因数分解:

$2^4\times {\mathrm{151}}^1\times {\mathrm{8161}}^1$

素因数の和:8320

約数の個数: 20

約数和(自身を含む): 38459344

約数和(自身を除く): 18742368

約数列:

[1, 2, 4, 8, 16, 151, 302, 604, 1208, 2416, 8161, 16322, 32644, 65288, 130576, 1232311, 2464622, 4929244, 9858488, 19716976]

約数ペア:

[(1, 19716976), (2, 9858488), (4, 4929244), (8, 2464622), (16, 1232311), (151, 130576), (302, 65288), (604, 32644), (1208, 16322), (2416, 8161)]