28176705

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{8819}}^1$

素因数の和:8901

約数の個数: 24

約数和(自身を含む): 49533120

約数和(自身を除く): 21356415

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 1065, 3195, 8819, 26457, 44095, 79371, 132285, 396855, 626149, 1878447, 3130745, 5635341, 9392235, 28176705]

約数ペア:

[(1, 28176705), (3, 9392235), (5, 5635341), (9, 3130745), (15, 1878447), (45, 626149), (71, 396855), (213, 132285), (355, 79371), (639, 44095), (1065, 26457), (3195, 8819)]