20517543

素因数分解:

$3^4\times {\mathrm{439}}^1\times {\mathrm{577}}^1$

素因数の和:1028

約数の個数: 20

約数和(自身を含む): 30772720

約数和(自身を除く): 10255177

約数列:

[1, 3, 9, 27, 81, 439, 577, 1317, 1731, 3951, 5193, 11853, 15579, 35559, 46737, 253303, 759909, 2279727, 6839181, 20517543]

約数ペア:

[(1, 20517543), (3, 6839181), (9, 2279727), (27, 759909), (81, 253303), (439, 46737), (577, 35559), (1317, 15579), (1731, 11853), (3951, 5193)]