20748759

素因数分解:

$3^1\times {\mathrm{151}}^1\times {\mathrm{163}}^1\times {\mathrm{281}}^1$

素因数の和:598

約数の個数: 16

約数和(自身を含む): 28118784

約数和(自身を除く): 7370025

約数列:

[1, 3, 151, 163, 281, 453, 489, 843, 24613, 42431, 45803, 73839, 127293, 137409, 6916253, 20748759]

約数ペア:

[(1, 20748759), (3, 6916253), (151, 137409), (163, 127293), (281, 73839), (453, 45803), (489, 42431), (843, 24613)]