19808564

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{2687}}^1$

素因数の和:2807

約数の個数: 24

約数和(自身を含む): 36879360

約数和(自身を除く): 17070796

約数列:

[1, 2, 4, 19, 38, 76, 97, 194, 388, 1843, 2687, 3686, 5374, 7372, 10748, 51053, 102106, 204212, 260639, 521278, 1042556, 4952141, 9904282, 19808564]

約数ペア:

[(1, 19808564), (2, 9904282), (4, 4952141), (19, 1042556), (38, 521278), (76, 260639), (97, 204212), (194, 102106), (388, 51053), (1843, 10748), (2687, 7372), (3686, 5374)]