20663716

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{2803}}^1$

素因数の和:2923

約数の個数: 24

約数和(自身を含む): 38470880

約数和(自身を除く): 17807164

約数列:

[1, 2, 4, 19, 38, 76, 97, 194, 388, 1843, 2803, 3686, 5606, 7372, 11212, 53257, 106514, 213028, 271891, 543782, 1087564, 5165929, 10331858, 20663716]

約数ペア:

[(1, 20663716), (2, 10331858), (4, 5165929), (19, 1087564), (38, 543782), (76, 271891), (97, 213028), (194, 106514), (388, 53257), (1843, 11212), (2803, 7372), (3686, 5606)]