28268265

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{81937}}^1$

素因数の和:81968

約数の個数: 16

約数和(自身を含む): 47196288

約数和(自身を除く): 18928023

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 81937, 245811, 409685, 1229055, 1884551, 5653653, 9422755, 28268265]

約数ペア:

[(1, 28268265), (3, 9422755), (5, 5653653), (15, 1884551), (23, 1229055), (69, 409685), (115, 245811), (345, 81937)]