2109457987

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{743}}^1\times {\mathrm{4457}}^1$

素因数の和:5227

約数の個数: 24

約数和(自身を含む): 2646768096

約数和(自身を除く): 537310109

約数列:

[1, 7, 13, 49, 91, 637, 743, 4457, 5201, 9659, 31199, 36407, 57941, 67613, 218393, 405587, 473291, 2839109, 3311551, 23180857, 43050163, 162265999, 301351141, 2109457987]

約数ペア:

[(1, 2109457987), (7, 301351141), (13, 162265999), (49, 43050163), (91, 23180857), (637, 3311551), (743, 2839109), (4457, 473291), (5201, 405587), (9659, 218393), (31199, 67613), (36407, 57941)]