21659031

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{5507}}^1$

素因数の和:5555

約数の個数: 24

約数和(自身を含む): 34369920

約数和(自身を除く): 12710889

約数列:

[1, 3, 9, 19, 23, 57, 69, 171, 207, 437, 1311, 3933, 5507, 16521, 49563, 104633, 126661, 313899, 379983, 941697, 1139949, 2406559, 7219677, 21659031]

約数ペア:

[(1, 21659031), (3, 7219677), (9, 2406559), (19, 1139949), (23, 941697), (57, 379983), (69, 313899), (171, 126661), (207, 104633), (437, 49563), (1311, 16521), (3933, 5507)]