213307105

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{19489}}^1$

素因数の和:19704

約数の個数: 16

約数和(自身を含む): 280656000

約数和(自身を除く): 67348895

約数列:

[1, 5, 11, 55, 199, 995, 2189, 10945, 19489, 97445, 214379, 1071895, 3878311, 19391555, 42661421, 213307105]

約数ペア:

[(1, 213307105), (5, 42661421), (11, 19391555), (55, 3878311), (199, 1071895), (995, 214379), (2189, 97445), (10945, 19489)]