20786437

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{269}}^1$

素因数の和:385

約数の個数: 24

約数和(自身を含む): 25855200

約数和(自身を除く): 5068763

約数列:

[1, 7, 19, 49, 83, 133, 269, 581, 931, 1577, 1883, 4067, 5111, 11039, 13181, 22327, 35777, 77273, 156289, 250439, 424213, 1094023, 2969491, 20786437]

約数ペア:

[(1, 20786437), (7, 2969491), (19, 1094023), (49, 424213), (83, 250439), (133, 156289), (269, 77273), (581, 35777), (931, 22327), (1577, 13181), (1883, 11039), (4067, 5111)]