287191521

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{4049}}^1$

素因数の和:4166

約数の個数: 32

約数和(自身を含む): 443232000

約数和(自身を除く): 156040479

約数列:

[1, 3, 9, 27, 37, 71, 111, 213, 333, 639, 999, 1917, 2627, 4049, 7881, 12147, 23643, 36441, 70929, 109323, 149813, 287479, 449439, 862437, 1348317, 2587311, 4044951, 7761933, 10636723, 31910169, 95730507, 287191521]

約数ペア:

[(1, 287191521), (3, 95730507), (9, 31910169), (27, 10636723), (37, 7761933), (71, 4044951), (111, 2587311), (213, 1348317), (333, 862437), (639, 449439), (999, 287479), (1917, 149813), (2627, 109323), (4049, 70929), (7881, 36441), (12147, 23643)]