21219472

素因数分解:

$2^4\times {\mathrm{557}}^1\times {\mathrm{2381}}^1$

素因数の和:2946

約数の個数: 20

約数和(自身を含む): 41203836

約数和(自身を除く): 19984364

約数列:

[1, 2, 4, 8, 16, 557, 1114, 2228, 2381, 4456, 4762, 8912, 9524, 19048, 38096, 1326217, 2652434, 5304868, 10609736, 21219472]

約数ペア:

[(1, 21219472), (2, 10609736), (4, 5304868), (8, 2652434), (16, 1326217), (557, 38096), (1114, 19048), (2228, 9524), (2381, 8912), (4456, 4762)]