2171090

素因数分解:

$2^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1091}}^1$

素因数の和:1297

約数の個数: 16

約数和(自身を含む): 3931200

約数和(自身を除く): 1760110

約数列:

[1, 2, 5, 10, 199, 398, 995, 1091, 1990, 2182, 5455, 10910, 217109, 434218, 1085545, 2171090]

約数ペア:

[(1, 2171090), (2, 1085545), (5, 434218), (10, 217109), (199, 10910), (398, 5455), (995, 2182), (1091, 1990)]