20459265

素因数分解:

$3^1\times 5^1\times {\mathrm{683}}^1\times {\mathrm{1997}}^1$

素因数の和:2688

約数の個数: 16

約数和(自身を含む): 32799168

約数和(自身を除く): 12339903

約数列:

[1, 3, 5, 15, 683, 1997, 2049, 3415, 5991, 9985, 10245, 29955, 1363951, 4091853, 6819755, 20459265]

約数ペア:

[(1, 20459265), (3, 6819755), (5, 4091853), (15, 1363951), (683, 29955), (1997, 10245), (2049, 9985), (3415, 5991)]