28006155

素因数分解:

$3^4\times 5^1\times {\mathrm{69151}}^1$

素因数の和:69168

約数の個数: 20

約数和(自身を含む): 50204352

約数和(自身を除く): 22198197

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 69151, 207453, 345755, 622359, 1037265, 1867077, 3111795, 5601231, 9335385, 28006155]

約数ペア:

[(1, 28006155), (3, 9335385), (5, 5601231), (9, 3111795), (15, 1867077), (27, 1037265), (45, 622359), (81, 345755), (135, 207453), (405, 69151)]