20172971

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7151}}^1$

素因数の和:7202

約数の個数: 16

約数和(自身を含む): 25632768

約数和(自身を除く): 5459797

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 7151, 50057, 92963, 221681, 650741, 1551767, 2881853, 20172971]

約数ペア:

[(1, 20172971), (7, 2881853), (13, 1551767), (31, 650741), (91, 221681), (217, 92963), (403, 50057), (2821, 7151)]