13545

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{43}}^1$

素因数の和:61

約数の個数: 24

約数和(自身を含む): 27456

約数和(自身を除く): 13911

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 43, 45, 63, 105, 129, 215, 301, 315, 387, 645, 903, 1505, 1935, 2709, 4515, 13545]

約数ペア:

[(1, 13545), (3, 4515), (5, 2709), (7, 1935), (9, 1505), (15, 903), (21, 645), (35, 387), (43, 315), (45, 301), (63, 215), (105, 129)]