20364905

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{821}}^1$

素因数の和:889

約数の個数: 24

約数和(自身を含む): 27550152

約数和(自身を除く): 7185247

約数列:

[1, 5, 11, 41, 55, 121, 205, 451, 605, 821, 2255, 4105, 4961, 9031, 24805, 33661, 45155, 99341, 168305, 370271, 496705, 1851355, 4072981, 20364905]

約数ペア:

[(1, 20364905), (5, 4072981), (11, 1851355), (41, 496705), (55, 370271), (121, 168305), (205, 99341), (451, 45155), (605, 33661), (821, 24805), (2255, 9031), (4105, 4961)]