20952844

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{43291}}^1$

素因数の和:43317

約数の個数: 18

約数和(自身を含む): 40304852

約数和(自身を除く): 19352008

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 43291, 86582, 173164, 476201, 952402, 1904804, 5238211, 10476422, 20952844]

約数ペア:

[(1, 20952844), (2, 10476422), (4, 5238211), (11, 1904804), (22, 952402), (44, 476201), (121, 173164), (242, 86582), (484, 43291)]