28106505

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{89227}}^1$

素因数の和:89245

約数の個数: 24

約数和(自身を含む): 55678272

約数和(自身を除く): 27571767

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 89227, 267681, 446135, 624589, 803043, 1338405, 1873767, 3122945, 4015215, 5621301, 9368835, 28106505]

約数ペア:

[(1, 28106505), (3, 9368835), (5, 5621301), (7, 4015215), (9, 3122945), (15, 1873767), (21, 1338405), (35, 803043), (45, 624589), (63, 446135), (105, 267681), (315, 89227)]