18979796

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{4447}}^1$

素因数の和:4559

約数の個数: 24

約数和(自身を含む): 36615936

約数和(自身を除く): 17636140

約数列:

[1, 2, 4, 11, 22, 44, 97, 194, 388, 1067, 2134, 4268, 4447, 8894, 17788, 48917, 97834, 195668, 431359, 862718, 1725436, 4744949, 9489898, 18979796]

約数ペア:

[(1, 18979796), (2, 9489898), (4, 4744949), (11, 1725436), (22, 862718), (44, 431359), (97, 195668), (194, 97834), (388, 48917), (1067, 17788), (2134, 8894), (4268, 4447)]