28765009

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{6451}}^1$

素因数の和:6485

約数の個数: 16

約数和(自身を含む): 36131200

約数和(自身を除く): 7366191

約数列:

[1, 7, 13, 49, 91, 343, 637, 4459, 6451, 45157, 83863, 316099, 587041, 2212693, 4109287, 28765009]

約数ペア:

[(1, 28765009), (7, 4109287), (13, 2212693), (49, 587041), (91, 316099), (343, 83863), (637, 45157), (4459, 6451)]