20443162257

素因数分解:

$3^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1171}}^1\times {\mathrm{1277}}^1$

素因数の和:2499

約数の個数: 72

約数和(自身を含む): 35516212992

約数和(自身を除く): 15073050735

約数列:

[1, 3, 7, 9, 21, 31, 49, 63, 93, 147, 217, 279, 441, 651, 1171, 1277, 1519, 1953, 3513, 3831, 4557, 8197, 8939, 10539, 11493, 13671, 24591, 26817, 36301, 39587, 57379, 62573, 73773, 80451, 108903, 118761, 172137, 187719, 254107, 277109, 326709, 356283, 516411, 563157, 762321, 831327, 1495367, 1778749, 1939763, 2286963, 2493981, 4486101, 5336247, 5819289, 10467569, 13458303, 16008741, 17457867, 31402707, 46356377, 73272983, 94208121, 139069131, 219818949, 324494639, 417207393, 659456847, 973483917, 2271462473, 2920451751, 6814387419, 20443162257]

約数ペア:

[(1, 20443162257), (3, 6814387419), (7, 2920451751), (9, 2271462473), (21, 973483917), (31, 659456847), (49, 417207393), (63, 324494639), (93, 219818949), (147, 139069131), (217, 94208121), (279, 73272983), (441, 46356377), (651, 31402707), (1171, 17457867), (1277, 16008741), (1519, 13458303), (1953, 10467569), (3513, 5819289), (3831, 5336247), (4557, 4486101), (8197, 2493981), (8939, 2286963), (10539, 1939763), (11493, 1778749), (13671, 1495367), (24591, 831327), (26817, 762321), (36301, 563157), (39587, 516411), (57379, 356283), (62573, 326709), (73773, 277109), (80451, 254107), (108903, 187719), (118761, 172137)]