20809492

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{313}}^1\times {\mathrm{1511}}^1$

素因数の和:1839

約数の個数: 24

約数和(自身を含む): 39880512

約数和(自身を除く): 19071020

約数列:

[1, 2, 4, 11, 22, 44, 313, 626, 1252, 1511, 3022, 3443, 6044, 6886, 13772, 16621, 33242, 66484, 472943, 945886, 1891772, 5202373, 10404746, 20809492]

約数ペア:

[(1, 20809492), (2, 10404746), (4, 5202373), (11, 1891772), (22, 945886), (44, 472943), (313, 66484), (626, 33242), (1252, 16621), (1511, 13772), (3022, 6886), (3443, 6044)]