18799885

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{7817}}^1$

素因数の和:7872

約数の個数: 16

約数和(自身を含む): 24955056

約数和(自身を除く): 6155171

約数列:

[1, 5, 13, 37, 65, 185, 481, 2405, 7817, 39085, 101621, 289229, 508105, 1446145, 3759977, 18799885]

約数ペア:

[(1, 18799885), (5, 3759977), (13, 1446145), (37, 508105), (65, 289229), (185, 101621), (481, 39085), (2405, 7817)]