20559813

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1\times {\mathrm{677}}^1$

素因数の和:924

約数の個数: 16

約数和(自身を含む): 28118016

約数和(自身を除く): 7558203

約数列:

[1, 3, 53, 159, 191, 573, 677, 2031, 10123, 30369, 35881, 107643, 129307, 387921, 6853271, 20559813]

約数ペア:

[(1, 20559813), (3, 6853271), (53, 387921), (159, 129307), (191, 107643), (573, 35881), (677, 30369), (2031, 10123)]