28791321

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{4889}}^1$

素因数の和:5056

約数の個数: 16

約数和(自身を含む): 41623680

約数和(自身を除く): 12832359

約数列:

[1, 3, 13, 39, 151, 453, 1963, 4889, 5889, 14667, 63557, 190671, 738239, 2214717, 9597107, 28791321]

約数ペア:

[(1, 28791321), (3, 9597107), (13, 2214717), (39, 738239), (151, 190671), (453, 63557), (1963, 14667), (4889, 5889)]