28163889

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{80239}}^1$

素因数の和:80261

約数の個数: 16

約数和(自身を含む): 44934400

約数和(自身を除く): 16770511

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 80239, 240717, 722151, 1043107, 2166453, 3129321, 9387963, 28163889]

約数ペア:

[(1, 28163889), (3, 9387963), (9, 3129321), (13, 2166453), (27, 1043107), (39, 722151), (117, 240717), (351, 80239)]