20458971

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{13451}}^1$

素因数の和:13483

約数の個数: 18

約数和(自身を含む): 32002308

約数和(自身を除く): 11543337

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 13451, 40353, 121059, 174863, 524589, 1573767, 2273219, 6819657, 20458971]

約数ペア:

[(1, 20458971), (3, 6819657), (9, 2273219), (13, 1573767), (39, 524589), (117, 174863), (169, 121059), (507, 40353), (1521, 13451)]