18916986

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{443}}^1\times {\mathrm{647}}^1$

素因数の和:1106

約数の個数: 32

約数和(自身を含む): 41430528

約数和(自身を除く): 22513542

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 443, 647, 886, 1294, 1329, 1941, 2658, 3882, 4873, 7117, 9746, 14234, 14619, 21351, 29238, 42702, 286621, 573242, 859863, 1719726, 3152831, 6305662, 9458493, 18916986]

約数ペア:

[(1, 18916986), (2, 9458493), (3, 6305662), (6, 3152831), (11, 1719726), (22, 859863), (33, 573242), (66, 286621), (443, 42702), (647, 29238), (886, 21351), (1294, 14619), (1329, 14234), (1941, 9746), (2658, 7117), (3882, 4873)]