30991857

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{5717}}^1$

素因数の和:5872

約数の個数: 16

約数和(自身を含む): 44829120

約数和(自身を除く): 13837263

約数列:

[1, 3, 13, 39, 139, 417, 1807, 5421, 5717, 17151, 74321, 222963, 794663, 2383989, 10330619, 30991857]

約数ペア:

[(1, 30991857), (3, 10330619), (13, 2383989), (39, 794663), (139, 222963), (417, 74321), (1807, 17151), (5421, 5717)]