19854724

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{69911}}^1$

素因数の和:69986

約数の個数: 12

約数和(自身を含む): 35235648

約数和(自身を除く): 15380924

約数列:

[1, 2, 4, 71, 142, 284, 69911, 139822, 279644, 4963681, 9927362, 19854724]

約数ペア:

[(1, 19854724), (2, 9927362), (4, 4963681), (71, 279644), (142, 139822), (284, 69911)]