20771229

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{3109}}^1$

素因数の和:3260

約数の個数: 16

約数和(自身を含む): 29557440

約数和(自身を除く): 8786211

約数列:

[1, 3, 17, 51, 131, 393, 2227, 3109, 6681, 9327, 52853, 158559, 407279, 1221837, 6923743, 20771229]

約数ペア:

[(1, 20771229), (3, 6923743), (17, 1221837), (51, 407279), (131, 158559), (393, 52853), (2227, 9327), (3109, 6681)]