20486295

素因数分解:

$3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3323}}^1$

素因数の和:3471

約数の個数: 24

約数和(自身を含む): 35779536

約数和(自身を除く): 15293241

約数列:

[1, 3, 5, 9, 15, 45, 137, 411, 685, 1233, 2055, 3323, 6165, 9969, 16615, 29907, 49845, 149535, 455251, 1365753, 2276255, 4097259, 6828765, 20486295]

約数ペア:

[(1, 20486295), (3, 6828765), (5, 4097259), (9, 2276255), (15, 1365753), (45, 455251), (137, 149535), (411, 49845), (685, 29907), (1233, 16615), (2055, 9969), (3323, 6165)]