20488815

素因数分解:

$3^3\times 5^1\times {\mathrm{151769}}^1$

素因数の和:151783

約数の個数: 16

約数和(自身を含む): 36424800

約数和(自身を除く): 15935985

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 151769, 455307, 758845, 1365921, 2276535, 4097763, 6829605, 20488815]

約数ペア:

[(1, 20488815), (3, 6829605), (5, 4097763), (9, 2276535), (15, 1365921), (27, 758845), (45, 455307), (135, 151769)]