1809739179

素因数分解:

$3^4\times {\mathrm{181}}^1\times {\mathrm{123439}}^1$

素因数の和:123632

約数の個数: 20

約数和(自身を含む): 2718395680

約数和(自身を除く): 908656501

約数列:

[1, 3, 9, 27, 81, 181, 543, 1629, 4887, 14661, 123439, 370317, 1110951, 3332853, 9998559, 22342459, 67027377, 201082131, 603246393, 1809739179]

約数ペア:

[(1, 1809739179), (3, 603246393), (9, 201082131), (27, 67027377), (81, 22342459), (181, 9998559), (543, 3332853), (1629, 1110951), (4887, 370317), (14661, 123439)]