15221717

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{593}}^1$

素因数の和:812

約数の個数: 16

約数和(自身を含む): 18437760

約数和(自身を除く): 3216043

約数列:

[1, 7, 19, 133, 193, 593, 1351, 3667, 4151, 11267, 25669, 78869, 114449, 801143, 2174531, 15221717]

約数ペア:

[(1, 15221717), (7, 2174531), (19, 801143), (133, 114449), (193, 78869), (593, 25669), (1351, 11267), (3667, 4151)]