18488265

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{72503}}^1$

素因数の和:72528

約数の個数: 16

約数和(自身を含む): 31321728

約数和(自身を除く): 12833463

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 72503, 217509, 362515, 1087545, 1232551, 3697653, 6162755, 18488265]

約数ペア:

[(1, 18488265), (3, 6162755), (5, 3697653), (15, 1232551), (17, 1087545), (51, 362515), (85, 217509), (255, 72503)]