20804948347

素因数分解:

${\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{997}}^1\times {\mathrm{20123}}^1$

素因数の和:21198

約数の個数: 16

約数和(自身を含む): 22413467232

約数和(自身を除く): 1608518885

約数列:

[1, 17, 61, 997, 1037, 16949, 20123, 60817, 342091, 1033889, 1227503, 20062631, 20867551, 341064727, 1223820491, 20804948347]

約数ペア:

[(1, 20804948347), (17, 1223820491), (61, 341064727), (997, 20867551), (1037, 20062631), (16949, 1227503), (20123, 1033889), (60817, 342091)]