18221405

素因数分解:

$5^1\times {\mathrm{23}}^2\times {\mathrm{83}}^2$

素因数の和:217

約数の個数: 18

約数和(自身を含む): 23136414

約数和(自身を除く): 4915009

約数列:

[1, 5, 23, 83, 115, 415, 529, 1909, 2645, 6889, 9545, 34445, 43907, 158447, 219535, 792235, 3644281, 18221405]

約数ペア:

[(1, 18221405), (5, 3644281), (23, 792235), (83, 219535), (115, 158447), (415, 43907), (529, 34445), (1909, 9545), (2645, 6889)]