28177335

素因数分解:

$3^3\times 5^1\times {\mathrm{208721}}^1$

素因数の和:208735

約数の個数: 16

約数和(自身を含む): 50093280

約数和(自身を除く): 21915945

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 208721, 626163, 1043605, 1878489, 3130815, 5635467, 9392445, 28177335]

約数ペア:

[(1, 28177335), (3, 9392445), (5, 5635467), (9, 3130815), (15, 1878489), (27, 1043605), (45, 626163), (135, 208721)]