21567804545

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1\times {\mathrm{1663}}^1$

素因数の和:2070

約数の個数: 64

約数和(自身を含む): 31882346496

約数和(自身を除く): 10314541951

約数列:

[1, 5, 7, 17, 35, 71, 85, 119, 307, 355, 497, 595, 1207, 1535, 1663, 2149, 2485, 5219, 6035, 8315, 8449, 10745, 11641, 21797, 26095, 28271, 36533, 42245, 58205, 108985, 118073, 141355, 152579, 182665, 197897, 370549, 510541, 590365, 762895, 826511, 989485, 1852745, 2007241, 2552705, 2593843, 3573787, 4132555, 8679197, 10036205, 12969215, 14050687, 17868935, 36248411, 43395985, 60754379, 70253435, 181242055, 253738877, 303771895, 616222987, 1268694385, 3081114935, 4313560909, 21567804545]

約数ペア:

[(1, 21567804545), (5, 4313560909), (7, 3081114935), (17, 1268694385), (35, 616222987), (71, 303771895), (85, 253738877), (119, 181242055), (307, 70253435), (355, 60754379), (497, 43395985), (595, 36248411), (1207, 17868935), (1535, 14050687), (1663, 12969215), (2149, 10036205), (2485, 8679197), (5219, 4132555), (6035, 3573787), (8315, 2593843), (8449, 2552705), (10745, 2007241), (11641, 1852745), (21797, 989485), (26095, 826511), (28271, 762895), (36533, 590365), (42245, 510541), (58205, 370549), (108985, 197897), (118073, 182665), (141355, 152579)]