16457942781

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{28087}}^1$

素因数の和:28302

約数の個数: 48

約数和(自身を含む): 27762628608

約数和(自身を除く): 11304685827

約数列:

[1, 3, 7, 9, 21, 63, 71, 131, 213, 393, 497, 639, 917, 1179, 1491, 2751, 4473, 8253, 9301, 27903, 28087, 65107, 83709, 84261, 195321, 196609, 252783, 585963, 589827, 1769481, 1994177, 3679397, 5982531, 11038191, 13959239, 17947593, 25755779, 33114573, 41877717, 77267337, 125633151, 231802011, 261237187, 783711561, 1828660309, 2351134683, 5485980927, 16457942781]

約数ペア:

[(1, 16457942781), (3, 5485980927), (7, 2351134683), (9, 1828660309), (21, 783711561), (63, 261237187), (71, 231802011), (131, 125633151), (213, 77267337), (393, 41877717), (497, 33114573), (639, 25755779), (917, 17947593), (1179, 13959239), (1491, 11038191), (2751, 5982531), (4473, 3679397), (8253, 1994177), (9301, 1769481), (27903, 589827), (28087, 585963), (65107, 252783), (83709, 196609), (84261, 195321)]