20187156969

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{298631}}^1$

素因数の和:298710

約数の個数: 48

約数和(自身を含む): 35405809920

約数和(自身を除く): 15218652951

約数列:

[1, 3, 7, 9, 21, 29, 37, 63, 87, 111, 203, 259, 261, 333, 609, 777, 1073, 1827, 2331, 3219, 7511, 9657, 22533, 67599, 298631, 895893, 2090417, 2687679, 6271251, 8660299, 11049347, 18813753, 25980897, 33148041, 60622093, 77345429, 77942691, 99444123, 181866279, 232036287, 320431063, 545598837, 696108861, 961293189, 2243017441, 2883879567, 6729052323, 20187156969]

約数ペア:

[(1, 20187156969), (3, 6729052323), (7, 2883879567), (9, 2243017441), (21, 961293189), (29, 696108861), (37, 545598837), (63, 320431063), (87, 232036287), (111, 181866279), (203, 99444123), (259, 77942691), (261, 77345429), (333, 60622093), (609, 33148041), (777, 25980897), (1073, 18813753), (1827, 11049347), (2331, 8660299), (3219, 6271251), (7511, 2687679), (9657, 2090417), (22533, 895893), (67599, 298631)]