28768995

素因数分解:

$3^2\times 5^1\times {\mathrm{639311}}^1$

素因数の和:639322

約数の個数: 12

約数和(自身を含む): 49866336

約数和(自身を除く): 21097341

約数列:

[1, 3, 5, 9, 15, 45, 639311, 1917933, 3196555, 5753799, 9589665, 28768995]

約数ペア:

[(1, 28768995), (3, 9589665), (5, 5753799), (9, 3196555), (15, 1917933), (45, 639311)]