18688833

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{9749}}^1$

素因数の和:9829

約数の個数: 16

約数和(自身を含む): 28080000

約数和(自身を除く): 9391167

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 9749, 29247, 87741, 263223, 692179, 2076537, 6229611, 18688833]

約数ペア:

[(1, 18688833), (3, 6229611), (9, 2076537), (27, 692179), (71, 263223), (213, 87741), (639, 29247), (1917, 9749)]