20807941

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{1493}}^1$

素因数の和:1692

約数の個数: 16

約数和(自身を含む): 26103168

約数和(自身を除く): 5295227

約数列:

[1, 7, 11, 77, 181, 1267, 1493, 1991, 10451, 13937, 16423, 114961, 270233, 1891631, 2972563, 20807941]

約数ペア:

[(1, 20807941), (7, 2972563), (11, 1891631), (77, 270233), (181, 114961), (1267, 16423), (1493, 13937), (1991, 10451)]