221421508

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{718901}}^1$

素因数の和:718923

約数の個数: 24

約数和(自身を含む): 483102144

約数和(自身を除く): 261680636

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 718901, 1437802, 2875604, 5032307, 7907911, 10064614, 15815822, 20129228, 31631644, 55355377, 110710754, 221421508]

約数ペア:

[(1, 221421508), (2, 110710754), (4, 55355377), (7, 31631644), (11, 20129228), (14, 15815822), (22, 10064614), (28, 7907911), (44, 5032307), (77, 2875604), (154, 1437802), (308, 718901)]