20659905

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{65587}}^1$

素因数の和:65605

約数の個数: 24

約数和(自身を含む): 40926912

約数和(自身を除く): 20267007

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 65587, 196761, 327935, 459109, 590283, 983805, 1377327, 2295545, 2951415, 4131981, 6886635, 20659905]

約数ペア:

[(1, 20659905), (3, 6886635), (5, 4131981), (7, 2951415), (9, 2295545), (15, 1377327), (21, 983805), (35, 590283), (45, 459109), (63, 327935), (105, 196761), (315, 65587)]