20950556

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{2417}}^1$

素因数の和:2629

約数の個数: 24

約数和(自身を含む): 40216176

約数和(自身を除く): 19265620

約数列:

[1, 2, 4, 11, 22, 44, 197, 394, 788, 2167, 2417, 4334, 4834, 8668, 9668, 26587, 53174, 106348, 476149, 952298, 1904596, 5237639, 10475278, 20950556]

約数ペア:

[(1, 20950556), (2, 10475278), (4, 5237639), (11, 1904596), (22, 952298), (44, 476149), (197, 106348), (394, 53174), (788, 26587), (2167, 9668), (2417, 8668), (4334, 4834)]