20657816

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{54941}}^1$

素因数の和:54994

約数の個数: 16

約数和(自身を含む): 39558240

約数和(自身を除く): 18900424

約数列:

[1, 2, 4, 8, 47, 94, 188, 376, 54941, 109882, 219764, 439528, 2582227, 5164454, 10328908, 20657816]

約数ペア:

[(1, 20657816), (2, 10328908), (4, 5164454), (8, 2582227), (47, 439528), (94, 219764), (188, 109882), (376, 54941)]