20348721

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{499}}^1$

素因数の和:725

約数の個数: 24

約数和(自身を含む): 30888000

約数和(自身を除く): 10539279

約数列:

[1, 3, 9, 23, 69, 197, 207, 499, 591, 1497, 1773, 4491, 4531, 11477, 13593, 34431, 40779, 98303, 103293, 294909, 884727, 2260969, 6782907, 20348721]

約数ペア:

[(1, 20348721), (3, 6782907), (9, 2260969), (23, 884727), (69, 294909), (197, 103293), (207, 98303), (499, 40779), (591, 34431), (1497, 13593), (1773, 11477), (4491, 4531)]