20808766

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{643}}^1\times {\mathrm{1471}}^1$

素因数の和:2127

約数の個数: 16

約数和(自身を含む): 34126848

約数和(自身を除く): 13318082

約数列:

[1, 2, 11, 22, 643, 1286, 1471, 2942, 7073, 14146, 16181, 32362, 945853, 1891706, 10404383, 20808766]

約数ペア:

[(1, 20808766), (2, 10404383), (11, 1891706), (22, 945853), (643, 32362), (1286, 16181), (1471, 14146), (2942, 7073)]