19689507

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{10271}}^1$

素因数の和:10351

約数の個数: 16

約数和(自身を含む): 29583360

約数和(自身を除く): 9893853

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 10271, 30813, 92439, 277317, 729241, 2187723, 6563169, 19689507]

約数ペア:

[(1, 19689507), (3, 6563169), (9, 2187723), (27, 729241), (71, 277317), (213, 92439), (639, 30813), (1917, 10271)]