19955848

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{5531}}^1$

素因数の和:5589

約数の個数: 32

約数和(自身を含む): 41821920

約数和(自身を除く): 21866072

約数列:

[1, 2, 4, 8, 11, 22, 41, 44, 82, 88, 164, 328, 451, 902, 1804, 3608, 5531, 11062, 22124, 44248, 60841, 121682, 226771, 243364, 453542, 486728, 907084, 1814168, 2494481, 4988962, 9977924, 19955848]

約数ペア:

[(1, 19955848), (2, 9977924), (4, 4988962), (8, 2494481), (11, 1814168), (22, 907084), (41, 486728), (44, 453542), (82, 243364), (88, 226771), (164, 121682), (328, 60841), (451, 44248), (902, 22124), (1804, 11062), (3608, 5531)]