20626172

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{283}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 43895040

約数和(自身を除く): 23268868

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 137, 266, 274, 283, 532, 548, 566, 959, 1132, 1918, 1981, 2603, 3836, 3962, 5206, 5377, 7924, 10412, 10754, 18221, 21508, 36442, 37639, 38771, 72884, 75278, 77542, 150556, 155084, 271397, 542794, 736649, 1085588, 1473298, 2946596, 5156543, 10313086, 20626172]

約数ペア:

[(1, 20626172), (2, 10313086), (4, 5156543), (7, 2946596), (14, 1473298), (19, 1085588), (28, 736649), (38, 542794), (76, 271397), (133, 155084), (137, 150556), (266, 77542), (274, 75278), (283, 72884), (532, 38771), (548, 37639), (566, 36442), (959, 21508), (1132, 18221), (1918, 10754), (1981, 10412), (2603, 7924), (3836, 5377), (3962, 5206)]