19540017

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{7213}}^1$

素因数の和:7269

約数の個数: 24

約数和(自身を含む): 33011264

約数和(自身を除く): 13471247

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 7213, 21639, 50491, 64917, 151473, 310159, 454419, 930477, 2171113, 2791431, 6513339, 19540017]

約数ペア:

[(1, 19540017), (3, 6513339), (7, 2791431), (9, 2171113), (21, 930477), (43, 454419), (63, 310159), (129, 151473), (301, 64917), (387, 50491), (903, 21639), (2709, 7213)]