20085868

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{2011}}^1$

素因数の和:2253

約数の個数: 24

約数和(自身を含む): 38533824

約数和(自身を除く): 18447956

約数列:

[1, 2, 4, 11, 22, 44, 227, 454, 908, 2011, 2497, 4022, 4994, 8044, 9988, 22121, 44242, 88484, 456497, 912994, 1825988, 5021467, 10042934, 20085868]

約数ペア:

[(1, 20085868), (2, 10042934), (4, 5021467), (11, 1825988), (22, 912994), (44, 456497), (227, 88484), (454, 44242), (908, 22121), (2011, 9988), (2497, 8044), (4022, 4994)]