20305845

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{9209}}^1$

素因数の和:9234

約数の個数: 36

約数和(自身を含む): 40947660

約数和(自身を除く): 20641815

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 2205, 9209, 27627, 46045, 64463, 82881, 138135, 193389, 322315, 414405, 451241, 580167, 966945, 1353723, 2256205, 2900835, 4061169, 6768615, 20305845]

約数ペア:

[(1, 20305845), (3, 6768615), (5, 4061169), (7, 2900835), (9, 2256205), (15, 1353723), (21, 966945), (35, 580167), (45, 451241), (49, 414405), (63, 322315), (105, 193389), (147, 138135), (245, 82881), (315, 64463), (441, 46045), (735, 27627), (2205, 9209)]