20808522261

素因数分解:

$3^2\times {\mathrm{139}}^1\times {\mathrm{16633511}}^1$

素因数の和:16633656

約数の個数: 12

約数和(自身を含む): 30272991840

約数和(自身を除く): 9464469579

約数列:

[1, 3, 9, 139, 417, 1251, 16633511, 49900533, 149701599, 2312058029, 6936174087, 20808522261]

約数ペア:

[(1, 20808522261), (3, 6936174087), (9, 2312058029), (139, 149701599), (417, 49900533), (1251, 16633511)]