28320417

素因数分解:

$3^2\times {\mathrm{1571}}^1\times {\mathrm{2003}}^1$

素因数の和:3580

約数の個数: 12

約数和(自身を含む): 40953744

約数和(自身を除く): 12633327

約数列:

[1, 3, 9, 1571, 2003, 4713, 6009, 14139, 18027, 3146713, 9440139, 28320417]

約数ペア:

[(1, 28320417), (3, 9440139), (9, 3146713), (1571, 18027), (2003, 14139), (4713, 6009)]