19728963

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{499}}^1$

素因数の和:719

約数の個数: 24

約数和(自身を含む): 29952000

約数和(自身を除く): 10223037

約数列:

[1, 3, 9, 23, 69, 191, 207, 499, 573, 1497, 1719, 4393, 4491, 11477, 13179, 34431, 39537, 95309, 103293, 285927, 857781, 2192107, 6576321, 19728963]

約数ペア:

[(1, 19728963), (3, 6576321), (9, 2192107), (23, 857781), (69, 285927), (191, 103293), (207, 95309), (499, 39537), (573, 34431), (1497, 13179), (1719, 11477), (4393, 4491)]