20516664

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1259}}^1$

素因数の和:1372

約数の個数: 64

約数和(自身を含む): 59270400

約数和(自身を除く): 38753736

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 97, 168, 194, 291, 388, 582, 679, 776, 1164, 1259, 1358, 2037, 2328, 2518, 2716, 3777, 4074, 5036, 5432, 7554, 8148, 8813, 10072, 15108, 16296, 17626, 26439, 30216, 35252, 52878, 70504, 105756, 122123, 211512, 244246, 366369, 488492, 732738, 854861, 976984, 1465476, 1709722, 2564583, 2930952, 3419444, 5129166, 6838888, 10258332, 20516664]

約数ペア:

[(1, 20516664), (2, 10258332), (3, 6838888), (4, 5129166), (6, 3419444), (7, 2930952), (8, 2564583), (12, 1709722), (14, 1465476), (21, 976984), (24, 854861), (28, 732738), (42, 488492), (56, 366369), (84, 244246), (97, 211512), (168, 122123), (194, 105756), (291, 70504), (388, 52878), (582, 35252), (679, 30216), (776, 26439), (1164, 17626), (1259, 16296), (1358, 15108), (2037, 10072), (2328, 8813), (2518, 8148), (2716, 7554), (3777, 5432), (4074, 5036)]