18904251

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1\times {\mathrm{577}}^1$

素因数の和:810

約数の個数: 16

約数和(自身を含む): 25783424

約数和(自身を除く): 6879173

約数列:

[1, 3, 67, 163, 201, 489, 577, 1731, 10921, 32763, 38659, 94051, 115977, 282153, 6301417, 18904251]

約数ペア:

[(1, 18904251), (3, 6301417), (67, 282153), (163, 115977), (201, 94051), (489, 38659), (577, 32763), (1731, 10921)]