19817315

素因数分解:

$5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{1721}}^1$

素因数の和:1787

約数の個数: 24

約数和(自身を含む): 28268352

約数和(自身を除く): 8451037

約数列:

[1, 5, 7, 35, 47, 49, 235, 245, 329, 1645, 1721, 2303, 8605, 11515, 12047, 60235, 80887, 84329, 404435, 421645, 566209, 2831045, 3963463, 19817315]

約数ペア:

[(1, 19817315), (5, 3963463), (7, 2831045), (35, 566209), (47, 421645), (49, 404435), (235, 84329), (245, 80887), (329, 60235), (1645, 12047), (1721, 11515), (2303, 8605)]