28243485

素因数分解:

$3^4\times 5^1\times {\mathrm{69737}}^1$

素因数の和:69754

約数の個数: 20

約数和(自身を含む): 50629788

約数和(自身を除く): 22386303

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 69737, 209211, 348685, 627633, 1046055, 1882899, 3138165, 5648697, 9414495, 28243485]

約数ペア:

[(1, 28243485), (3, 9414495), (5, 5648697), (9, 3138165), (15, 1882899), (27, 1046055), (45, 627633), (81, 348685), (135, 209211), (405, 69737)]