208030905

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{243311}}^1$

素因数の和:243341

約数の個数: 24

約数和(自身を含む): 379566720

約数和(自身を除く): 171535815

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 243311, 729933, 1216555, 2189799, 3649665, 4622909, 10948995, 13868727, 23114545, 41606181, 69343635, 208030905]

約数ペア:

[(1, 208030905), (3, 69343635), (5, 41606181), (9, 23114545), (15, 13868727), (19, 10948995), (45, 4622909), (57, 3649665), (95, 2189799), (171, 1216555), (285, 729933), (855, 243311)]