20785548

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{2551}}^1$

素因数の和:2662

約数の個数: 48

約数和(自身を含む): 56021504

約数和(自身を除く): 35235956

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 97, 194, 291, 388, 582, 679, 1164, 1358, 2037, 2551, 2716, 4074, 5102, 7653, 8148, 10204, 15306, 17857, 30612, 35714, 53571, 71428, 107142, 214284, 247447, 494894, 742341, 989788, 1484682, 1732129, 2969364, 3464258, 5196387, 6928516, 10392774, 20785548]

約数ペア:

[(1, 20785548), (2, 10392774), (3, 6928516), (4, 5196387), (6, 3464258), (7, 2969364), (12, 1732129), (14, 1484682), (21, 989788), (28, 742341), (42, 494894), (84, 247447), (97, 214284), (194, 107142), (291, 71428), (388, 53571), (582, 35714), (679, 30612), (1164, 17857), (1358, 15306), (2037, 10204), (2551, 8148), (2716, 7653), (4074, 5102)]