28706157

素因数分解:

$3^4\times {\mathrm{151}}^1\times {\mathrm{2347}}^1$

素因数の和:2510

約数の個数: 20

約数和(自身を含む): 43184416

約数和(自身を除く): 14478259

約数列:

[1, 3, 9, 27, 81, 151, 453, 1359, 2347, 4077, 7041, 12231, 21123, 63369, 190107, 354397, 1063191, 3189573, 9568719, 28706157]

約数ペア:

[(1, 28706157), (3, 9568719), (9, 3189573), (27, 1063191), (81, 354397), (151, 190107), (453, 63369), (1359, 21123), (2347, 12231), (4077, 7041)]