20885887

素因数分解:

${\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{233}}^1\times {\mathrm{281}}^1$

素因数の和:554

約数の個数: 16

約数和(自身を含む): 23755680

約数和(自身を除く): 2869793

約数列:

[1, 11, 29, 233, 281, 319, 2563, 3091, 6757, 8149, 65473, 74327, 89639, 720203, 1898717, 20885887]

約数ペア:

[(1, 20885887), (11, 1898717), (29, 720203), (233, 89639), (281, 74327), (319, 65473), (2563, 8149), (3091, 6757)]