20423149

素因数分解:

${\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{233}}^1$

素因数の和:396

約数の個数: 16

約数和(自身を含む): 22194432

約数和(自身を除く): 1771283

約数列:

[1, 23, 37, 103, 233, 851, 2369, 3811, 5359, 8621, 23999, 87653, 198283, 551977, 887963, 20423149]

約数ペア:

[(1, 20423149), (23, 887963), (37, 551977), (103, 198283), (233, 87653), (851, 23999), (2369, 8621), (3811, 5359)]