21805798

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{91621}}^1$

素因数の和:91647

約数の個数: 16

約数和(自身を含む): 39580704

約数和(自身を除く): 17774906

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 91621, 183242, 641347, 1282694, 1557557, 3115114, 10902899, 21805798]

約数ペア:

[(1, 21805798), (2, 10902899), (7, 3115114), (14, 1557557), (17, 1282694), (34, 641347), (119, 183242), (238, 91621)]