18005211

素因数分解:

$3^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{2671}}^1$

素因数の和:2791

約数の個数: 24

約数和(自身を含む): 30011904

約数和(自身を除く): 12006693

約数列:

[1, 3, 7, 9, 21, 63, 107, 321, 749, 963, 2247, 2671, 6741, 8013, 18697, 24039, 56091, 168273, 285797, 857391, 2000579, 2572173, 6001737, 18005211]

約数ペア:

[(1, 18005211), (3, 6001737), (7, 2572173), (9, 2000579), (21, 857391), (63, 285797), (107, 168273), (321, 56091), (749, 24039), (963, 18697), (2247, 8013), (2671, 6741)]