261569281779

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{17330503}}^1$

素因数の和:17330568

約数の個数: 32

約数和(自身を含む): 427023618560

約数和(自身を除く): 165454336781

約数列:

[1, 3, 9, 13, 27, 39, 43, 117, 129, 351, 387, 559, 1161, 1677, 5031, 15093, 17330503, 51991509, 155974527, 225296539, 467923581, 675889617, 745211629, 2027668851, 2235634887, 6083006553, 6706904661, 9687751177, 20120713983, 29063253531, 87189760593, 261569281779]

約数ペア:

[(1, 261569281779), (3, 87189760593), (9, 29063253531), (13, 20120713983), (27, 9687751177), (39, 6706904661), (43, 6083006553), (117, 2235634887), (129, 2027668851), (351, 745211629), (387, 675889617), (559, 467923581), (1161, 225296539), (1677, 155974527), (5031, 51991509), (15093, 17330503)]