20819007

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{1861}}^1$

素因数の和:1991

約数の個数: 24

約数和(自身を含む): 33113808

約数和(自身を除く): 12294801

約数列:

[1, 3, 9, 11, 33, 99, 113, 339, 1017, 1243, 1861, 3729, 5583, 11187, 16749, 20471, 61413, 184239, 210293, 630879, 1892637, 2313223, 6939669, 20819007]

約数ペア:

[(1, 20819007), (3, 6939669), (9, 2313223), (11, 1892637), (33, 630879), (99, 210293), (113, 184239), (339, 61413), (1017, 20471), (1243, 16749), (1861, 11187), (3729, 5583)]