81778959

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{1987}}^1$

素因数の和:2279

約数の個数: 24

約数和(自身を含む): 125601840

約数和(自身を除く): 43822881

約数列:

[1, 3, 9, 17, 51, 153, 269, 807, 1987, 2421, 4573, 5961, 13719, 17883, 33779, 41157, 101337, 304011, 534503, 1603509, 4810527, 9086551, 27259653, 81778959]

約数ペア:

[(1, 81778959), (3, 27259653), (9, 9086551), (17, 4810527), (51, 1603509), (153, 534503), (269, 304011), (807, 101337), (1987, 41157), (2421, 33779), (4573, 17883), (5961, 13719)]