28351215

素因数分解:

$3^4\times 5^1\times {\mathrm{70003}}^1$

素因数の和:70020

約数の個数: 20

約数和(自身を含む): 50822904

約数和(自身を除く): 22471689

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 70003, 210009, 350015, 630027, 1050045, 1890081, 3150135, 5670243, 9450405, 28351215]

約数ペア:

[(1, 28351215), (3, 9450405), (5, 5670243), (9, 3150135), (15, 1890081), (27, 1050045), (45, 630027), (81, 350015), (135, 210009), (405, 70003)]