20878598

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{223}}^1\times {\mathrm{277}}^1$

素因数の和:528

約数の個数: 24

約数和(自身を含む): 34187328

約数和(自身を除く): 13308730

約数列:

[1, 2, 13, 26, 169, 223, 277, 338, 446, 554, 2899, 3601, 5798, 7202, 37687, 46813, 61771, 75374, 93626, 123542, 803023, 1606046, 10439299, 20878598]

約数ペア:

[(1, 20878598), (2, 10439299), (13, 1606046), (26, 803023), (169, 123542), (223, 93626), (277, 75374), (338, 61771), (446, 46813), (554, 37687), (2899, 7202), (3601, 5798)]