20899681478

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{17102849}}^1$

素因数の和:17102911

約数の個数: 16

約数和(自身を含む): 34479345600

約数和(自身を除く): 13579664122

約数列:

[1, 2, 13, 26, 47, 94, 611, 1222, 17102849, 34205698, 222337037, 444674074, 803833903, 1607667806, 10449840739, 20899681478]

約数ペア:

[(1, 20899681478), (2, 10449840739), (13, 1607667806), (26, 803833903), (47, 444674074), (94, 222337037), (611, 34205698), (1222, 17102849)]