256987107

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{732157}}^1$

素因数の和:732179

約数の個数: 16

約数和(自身を含む): 410008480

約数和(自身を除く): 153021373

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 732157, 2196471, 6589413, 9518041, 19768239, 28554123, 85662369, 256987107]

約数ペア:

[(1, 256987107), (3, 85662369), (9, 28554123), (13, 19768239), (27, 9518041), (39, 6589413), (117, 2196471), (351, 732157)]