20939110

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{51071}}^1$

素因数の和:51119

約数の個数: 16

約数和(自身を含む): 38610432

約数和(自身を除く): 17671322

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 51071, 102142, 255355, 510710, 2093911, 4187822, 10469555, 20939110]

約数ペア:

[(1, 20939110), (2, 10469555), (5, 4187822), (10, 2093911), (41, 510710), (82, 255355), (205, 102142), (410, 51071)]