9991865

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{347}}^1\times {\mathrm{443}}^1$

素因数の和:808

約数の個数: 16

約数和(自身を含む): 12979008

約数和(自身を除く): 2987143

約数列:

[1, 5, 13, 65, 347, 443, 1735, 2215, 4511, 5759, 22555, 28795, 153721, 768605, 1998373, 9991865]

約数ペア:

[(1, 9991865), (5, 1998373), (13, 768605), (65, 153721), (347, 28795), (443, 22555), (1735, 5759), (2215, 4511)]