28320019

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{10039}}^1$

素因数の和:10090

約数の個数: 16

約数和(自身を含む): 35983360

約数和(自身を除く): 7663341

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 10039, 70273, 130507, 311209, 913549, 2178463, 4045717, 28320019]

約数ペア:

[(1, 28320019), (7, 4045717), (13, 2178463), (31, 913549), (91, 311209), (217, 130507), (403, 70273), (2821, 10039)]