20804905268

素因数分解:

$2^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{4105151}}^1$

素因数の和:4105343

約数の個数: 24

約数和(自身を含む): 41839709184

約数和(自身を除く): 21034803916

約数列:

[1, 2, 4, 7, 14, 28, 181, 362, 724, 1267, 2534, 5068, 4105151, 8210302, 16420604, 28736057, 57472114, 114944228, 743032331, 1486064662, 2972129324, 5201226317, 10402452634, 20804905268]

約数ペア:

[(1, 20804905268), (2, 10402452634), (4, 5201226317), (7, 2972129324), (14, 1486064662), (28, 743032331), (181, 114944228), (362, 57472114), (724, 28736057), (1267, 16420604), (2534, 8210302), (5068, 4105151)]