20587539

素因数分解:

$3^1\times 7^1\times {\mathrm{443}}^1\times {\mathrm{2213}}^1$

素因数の和:2666

約数の個数: 16

約数和(自身を含む): 31456512

約数和(自身を除く): 10868973

約数列:

[1, 3, 7, 21, 443, 1329, 2213, 3101, 6639, 9303, 15491, 46473, 980359, 2941077, 6862513, 20587539]

約数ペア:

[(1, 20587539), (3, 6862513), (7, 2941077), (21, 980359), (443, 46473), (1329, 15491), (2213, 9303), (3101, 6639)]