21249206530

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{51827333}}^1$

素因数の和:51827381

約数の個数: 16

約数和(自身を含む): 39181464504

約数和(自身を除く): 17932257974

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 51827333, 103654666, 259136665, 518273330, 2124920653, 4249841306, 10624603265, 21249206530]

約数ペア:

[(1, 21249206530), (2, 10624603265), (5, 4249841306), (10, 2124920653), (41, 518273330), (82, 259136665), (205, 103654666), (410, 51827333)]