20659335

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{81017}}^1$

素因数の和:81042

約数の個数: 16

約数和(自身を含む): 34999776

約数和(自身を除く): 14340441

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 81017, 243051, 405085, 1215255, 1377289, 4131867, 6886445, 20659335]

約数ペア:

[(1, 20659335), (3, 6886445), (5, 4131867), (15, 1377289), (17, 1215255), (51, 405085), (85, 243051), (255, 81017)]