20548665

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{26861}}^1$

素因数の和:26889

約数の個数: 24

約数和(自身を含む): 37714248

約数和(自身を除く): 17165583

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 26861, 80583, 134305, 241749, 402915, 456637, 1208745, 1369911, 2283185, 4109733, 6849555, 20548665]

約数ペア:

[(1, 20548665), (3, 6849555), (5, 4109733), (9, 2283185), (15, 1369911), (17, 1208745), (45, 456637), (51, 402915), (85, 241749), (153, 134305), (255, 80583), (765, 26861)]