81787167

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{10729}}^1$

素因数の和:10764

約数の個数: 36

約数和(自身を含む): 148417360

約数和(自身を除く): 66630193

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 121, 231, 363, 693, 847, 1089, 2541, 7623, 10729, 32187, 75103, 96561, 118019, 225309, 354057, 675927, 826133, 1062171, 1298209, 2478399, 3894627, 7435197, 9087463, 11683881, 27262389, 81787167]

約数ペア:

[(1, 81787167), (3, 27262389), (7, 11683881), (9, 9087463), (11, 7435197), (21, 3894627), (33, 2478399), (63, 1298209), (77, 1062171), (99, 826133), (121, 675927), (231, 354057), (363, 225309), (693, 118019), (847, 96561), (1089, 75103), (2541, 32187), (7623, 10729)]