20288907

素因数分解:

$3^3\times {\mathrm{487}}^1\times {\mathrm{1543}}^1$

素因数の和:2039

約数の個数: 16

約数和(自身を含む): 30138880

約数和(自身を除く): 9849973

約数列:

[1, 3, 9, 27, 487, 1461, 1543, 4383, 4629, 13149, 13887, 41661, 751441, 2254323, 6762969, 20288907]

約数ペア:

[(1, 20288907), (3, 6762969), (9, 2254323), (27, 751441), (487, 41661), (1461, 13887), (1543, 13149), (4383, 4629)]