205509909

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{359}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 321753600

約数和(自身を除く): 116243691

約数列:

[1, 3, 11, 19, 33, 57, 83, 121, 209, 249, 359, 363, 627, 913, 1077, 1577, 2299, 2739, 3949, 4731, 6821, 6897, 10043, 11847, 17347, 20463, 29797, 30129, 43439, 52041, 75031, 89391, 130317, 190817, 225093, 327767, 566143, 572451, 825341, 983301, 1698429, 2476023, 3605437, 6227573, 10816311, 18682719, 68503303, 205509909]

約数ペア:

[(1, 205509909), (3, 68503303), (11, 18682719), (19, 10816311), (33, 6227573), (57, 3605437), (83, 2476023), (121, 1698429), (209, 983301), (249, 825341), (359, 572451), (363, 566143), (627, 327767), (913, 225093), (1077, 190817), (1577, 130317), (2299, 89391), (2739, 75031), (3949, 52041), (4731, 43439), (6821, 30129), (6897, 29797), (10043, 20463), (11847, 17347)]