18692667

素因数分解:

$3^3\times 7^2\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:293

約数の個数: 48

約数和(自身を含む): 32832000

約数和(自身を除く): 14139333

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 71, 147, 189, 199, 213, 441, 497, 597, 639, 1323, 1393, 1491, 1791, 1917, 3479, 4179, 4473, 5373, 9751, 10437, 12537, 13419, 14129, 29253, 31311, 37611, 42387, 87759, 93933, 98903, 127161, 263277, 296709, 381483, 692321, 890127, 2076963, 2670381, 6230889, 18692667]

約数ペア:

[(1, 18692667), (3, 6230889), (7, 2670381), (9, 2076963), (21, 890127), (27, 692321), (49, 381483), (63, 296709), (71, 263277), (147, 127161), (189, 98903), (199, 93933), (213, 87759), (441, 42387), (497, 37611), (597, 31311), (639, 29253), (1323, 14129), (1393, 13419), (1491, 12537), (1791, 10437), (1917, 9751), (3479, 5373), (4179, 4473)]