289179909

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{2657}}^1$

素因数の和:2834

約数の個数: 32

約数和(自身を含む): 446544000

約数和(自身を除く): 157364091

約数列:

[1, 3, 9, 27, 29, 87, 139, 261, 417, 783, 1251, 2657, 3753, 4031, 7971, 12093, 23913, 36279, 71739, 77053, 108837, 231159, 369323, 693477, 1107969, 2080431, 3323907, 9971721, 10710367, 32131101, 96393303, 289179909]

約数ペア:

[(1, 289179909), (3, 96393303), (9, 32131101), (27, 10710367), (29, 9971721), (87, 3323907), (139, 2080431), (261, 1107969), (417, 693477), (783, 369323), (1251, 231159), (2657, 108837), (3753, 77053), (4031, 71739), (7971, 36279), (12093, 23913)]