20015554

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{17903}}^1$

素因数の和:17961

約数の個数: 16

約数和(自身を含む): 33086592

約数和(自身を除く): 13071038

約数列:

[1, 2, 13, 26, 43, 86, 559, 1118, 17903, 35806, 232739, 465478, 769829, 1539658, 10007777, 20015554]

約数ペア:

[(1, 20015554), (2, 10007777), (13, 1539658), (26, 769829), (43, 465478), (86, 232739), (559, 35806), (1118, 17903)]