21587621

素因数分解:

${\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1$

素因数の和:424

約数の個数: 16

約数和(自身を含む): 24178176

約数和(自身を除く): 2590555

約数列:

[1, 11, 71, 131, 211, 781, 1441, 2321, 9301, 14981, 27641, 102311, 164791, 304051, 1962511, 21587621]

約数ペア:

[(1, 21587621), (11, 1962511), (71, 304051), (131, 164791), (211, 102311), (781, 27641), (1441, 14981), (2321, 9301)]