20394537

素因数分解:

$3^1\times {\mathrm{23}}^2\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:301

約数の個数: 24

約数和(自身を含む): 28986048

約数和(自身を除く): 8591511

約数列:

[1, 3, 23, 69, 71, 181, 213, 529, 543, 1587, 1633, 4163, 4899, 12489, 12851, 37559, 38553, 95749, 112677, 287247, 295573, 886719, 6798179, 20394537]

約数ペア:

[(1, 20394537), (3, 6798179), (23, 886719), (69, 295573), (71, 287247), (181, 112677), (213, 95749), (529, 38553), (543, 37559), (1587, 12851), (1633, 12489), (4163, 4899)]