18510885

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 33546240

約数和(自身を除く): 15035355

約数列:

[1, 3, 5, 9, 15, 41, 45, 79, 123, 127, 205, 237, 369, 381, 395, 615, 635, 711, 1143, 1185, 1845, 1905, 3239, 3555, 5207, 5715, 9717, 10033, 15621, 16195, 26035, 29151, 30099, 46863, 48585, 50165, 78105, 90297, 145755, 150495, 234315, 411353, 451485, 1234059, 2056765, 3702177, 6170295, 18510885]

約数ペア:

[(1, 18510885), (3, 6170295), (5, 3702177), (9, 2056765), (15, 1234059), (41, 451485), (45, 411353), (79, 234315), (123, 150495), (127, 145755), (205, 90297), (237, 78105), (369, 50165), (381, 48585), (395, 46863), (615, 30099), (635, 29151), (711, 26035), (1143, 16195), (1185, 15621), (1845, 10033), (1905, 9717), (3239, 5715), (3555, 5207)]