21833840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{307}}^1$

素因数の和:454

約数の個数: 80

約数和(自身を含む): 58662912

約数和(自身を除く): 36829072

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 127, 140, 254, 280, 307, 508, 560, 614, 635, 889, 1016, 1228, 1270, 1535, 1778, 2032, 2149, 2456, 2540, 3070, 3556, 4298, 4445, 4912, 5080, 6140, 7112, 8596, 8890, 10160, 10745, 12280, 14224, 17192, 17780, 21490, 24560, 34384, 35560, 38989, 42980, 71120, 77978, 85960, 155956, 171920, 194945, 272923, 311912, 389890, 545846, 623824, 779780, 1091692, 1364615, 1559560, 2183384, 2729230, 3119120, 4366768, 5458460, 10916920, 21833840]

約数ペア:

[(1, 21833840), (2, 10916920), (4, 5458460), (5, 4366768), (7, 3119120), (8, 2729230), (10, 2183384), (14, 1559560), (16, 1364615), (20, 1091692), (28, 779780), (35, 623824), (40, 545846), (56, 389890), (70, 311912), (80, 272923), (112, 194945), (127, 171920), (140, 155956), (254, 85960), (280, 77978), (307, 71120), (508, 42980), (560, 38989), (614, 35560), (635, 34384), (889, 24560), (1016, 21490), (1228, 17780), (1270, 17192), (1535, 14224), (1778, 12280), (2032, 10745), (2149, 10160), (2456, 8890), (2540, 8596), (3070, 7112), (3556, 6140), (4298, 5080), (4445, 4912)]