18539794

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:191

約数の個数: 64

約数和(自身を含む): 36900864

約数和(自身を除く): 18361070

約数列:

[1, 2, 7, 13, 14, 23, 26, 43, 46, 86, 91, 103, 161, 182, 206, 299, 301, 322, 559, 598, 602, 721, 989, 1118, 1339, 1442, 1978, 2093, 2369, 2678, 3913, 4186, 4429, 4738, 6923, 7826, 8858, 9373, 12857, 13846, 16583, 18746, 25714, 30797, 31003, 33166, 57577, 61594, 62006, 89999, 101867, 115154, 179998, 203734, 215579, 403039, 431158, 713069, 806078, 1324271, 1426138, 2648542, 9269897, 18539794]

約数ペア:

[(1, 18539794), (2, 9269897), (7, 2648542), (13, 1426138), (14, 1324271), (23, 806078), (26, 713069), (43, 431158), (46, 403039), (86, 215579), (91, 203734), (103, 179998), (161, 115154), (182, 101867), (206, 89999), (299, 62006), (301, 61594), (322, 57577), (559, 33166), (598, 31003), (602, 30797), (721, 25714), (989, 18746), (1118, 16583), (1339, 13846), (1442, 12857), (1978, 9373), (2093, 8858), (2369, 7826), (2678, 6923), (3913, 4738), (4186, 4429)]