20698179

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{281}}^1\times {\mathrm{571}}^1$

素因数の和:898

約数の個数: 16

約数和(自身を含む): 28389504

約数和(自身を除く): 7691325

約数列:

[1, 3, 43, 129, 281, 571, 843, 1713, 12083, 24553, 36249, 73659, 160451, 481353, 6899393, 20698179]

約数ペア:

[(1, 20698179), (3, 6899393), (43, 481353), (129, 160451), (281, 73659), (571, 36249), (843, 24553), (1713, 12083)]