21031874515

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{832451}}^1$

素因数の和:832650

約数の個数: 16

約数和(自身を含む): 26212248576

約数和(自身を除く): 5180374061

約数列:

[1, 5, 31, 155, 163, 815, 5053, 25265, 832451, 4162255, 25805981, 129029905, 135689513, 678447565, 4206374903, 21031874515]

約数ペア:

[(1, 21031874515), (5, 4206374903), (31, 678447565), (155, 135689513), (163, 129029905), (815, 25805981), (5053, 4162255), (25265, 832451)]