20809638

素因数分解:

$2^1\times 3^2\times {\mathrm{149}}^1\times {\mathrm{7759}}^1$

素因数の和:7916

約数の個数: 24

約数和(自身を含む): 45396000

約数和(自身を除く): 24586362

約数列:

[1, 2, 3, 6, 9, 18, 149, 298, 447, 894, 1341, 2682, 7759, 15518, 23277, 46554, 69831, 139662, 1156091, 2312182, 3468273, 6936546, 10404819, 20809638]

約数ペア:

[(1, 20809638), (2, 10404819), (3, 6936546), (6, 3468273), (9, 2312182), (18, 1156091), (149, 139662), (298, 69831), (447, 46554), (894, 23277), (1341, 15518), (2682, 7759)]