20427578

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{1871}}^1$

素因数の和:2029

約数の個数: 16

約数和(自身を含む): 31539456

約数和(自身を除く): 11111878

約数列:

[1, 2, 53, 103, 106, 206, 1871, 3742, 5459, 10918, 99163, 192713, 198326, 385426, 10213789, 20427578]

約数ペア:

[(1, 20427578), (2, 10213789), (53, 385426), (103, 198326), (106, 192713), (206, 99163), (1871, 10918), (3742, 5459)]