18730359

素因数分解:

$3^4\times {\mathrm{53}}^1\times {\mathrm{4363}}^1$

素因数の和:4428

約数の個数: 20

約数和(自身を含む): 28514376

約数和(自身を除く): 9784017

約数列:

[1, 3, 9, 27, 53, 81, 159, 477, 1431, 4293, 4363, 13089, 39267, 117801, 231239, 353403, 693717, 2081151, 6243453, 18730359]

約数ペア:

[(1, 18730359), (3, 6243453), (9, 2081151), (27, 693717), (53, 353403), (81, 231239), (159, 117801), (477, 39267), (1431, 13089), (4293, 4363)]