20660865

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{81023}}^1$

素因数の和:81048

約数の個数: 16

約数和(自身を含む): 35002368

約数和(自身を除く): 14341503

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 81023, 243069, 405115, 1215345, 1377391, 4132173, 6886955, 20660865]

約数ペア:

[(1, 20660865), (3, 6886955), (5, 4132173), (15, 1377391), (17, 1215345), (51, 405115), (85, 243069), (255, 81023)]