20951887

素因数分解:

${\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{193}}^1$

素因数の和:414

約数の個数: 16

約数和(自身を含む): 23466240

約数和(自身を除く): 2514353

約数列:

[1, 11, 71, 139, 193, 781, 1529, 2123, 9869, 13703, 26827, 108559, 150733, 295097, 1904717, 20951887]

約数ペア:

[(1, 20951887), (11, 1904717), (71, 295097), (139, 150733), (193, 108559), (781, 26827), (1529, 13703), (2123, 9869)]