20187431999

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{560093}}^1$

素因数の和:560390

約数の個数: 16

約数和(自身を含む): 24375290880

約数和(自身を除く): 4187858881

約数列:

[1, 7, 19, 133, 271, 1897, 5149, 36043, 560093, 3920651, 10641767, 74492369, 151785203, 1062496421, 2883918857, 20187431999]

約数ペア:

[(1, 20187431999), (7, 2883918857), (19, 1062496421), (133, 151785203), (271, 74492369), (1897, 10641767), (5149, 3920651), (36043, 560093)]