28786731

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{5281}}^1$

素因数の和:5386

約数の個数: 16

約数和(自身を含む): 40565760

約数和(自身を除く): 11779029

約数列:

[1, 3, 23, 69, 79, 237, 1817, 5281, 5451, 15843, 121463, 364389, 417199, 1251597, 9595577, 28786731]

約数ペア:

[(1, 28786731), (3, 9595577), (23, 1251597), (69, 417199), (79, 364389), (237, 121463), (1817, 15843), (5281, 5451)]