20581198

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{439}}^1\times {\mathrm{2131}}^1$

素因数の和:2583

約数の個数: 16

約数和(自身を含む): 33770880

約数和(自身を除く): 13189682

約数列:

[1, 2, 11, 22, 439, 878, 2131, 4262, 4829, 9658, 23441, 46882, 935509, 1871018, 10290599, 20581198]

約数ペア:

[(1, 20581198), (2, 10290599), (11, 1871018), (22, 935509), (439, 46882), (878, 23441), (2131, 9658), (4262, 4829)]