20943164

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{43271}}^1$

素因数の和:43297

約数の個数: 18

約数和(自身を含む): 40286232

約数和(自身を除く): 19343068

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 43271, 86542, 173084, 475981, 951962, 1903924, 5235791, 10471582, 20943164]

約数ペア:

[(1, 20943164), (2, 10471582), (4, 5235791), (11, 1903924), (22, 951962), (44, 475981), (121, 173084), (242, 86542), (484, 43271)]