20960784052

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{31007077}}^1$

素因数の和:31007107

約数の個数: 18

約数和(自身を含む): 39720066918

約数和(自身を除く): 18759282866

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 31007077, 62014154, 124028308, 403092001, 806184002, 1612368004, 5240196013, 10480392026, 20960784052]

約数ペア:

[(1, 20960784052), (2, 10480392026), (4, 5240196013), (13, 1612368004), (26, 806184002), (52, 403092001), (169, 124028308), (338, 62014154), (676, 31007077)]