20572834

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{1721}}^1$

素因数の和:1905

約数の個数: 16

約数和(自身を含む): 31822560

約数和(自身を除く): 11249726

約数列:

[1, 2, 43, 86, 139, 278, 1721, 3442, 5977, 11954, 74003, 148006, 239219, 478438, 10286417, 20572834]

約数ペア:

[(1, 20572834), (2, 10286417), (43, 478438), (86, 239219), (139, 148006), (278, 74003), (1721, 11954), (3442, 5977)]