128654001

素因数分解:

$3^4\times 7^1\times {\mathrm{226903}}^1$

素因数の和:226922

約数の個数: 20

約数和(自身を含む): 219643072

約数和(自身を除く): 90989071

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 226903, 680709, 1588321, 2042127, 4764963, 6126381, 14294889, 18379143, 42884667, 128654001]

約数ペア:

[(1, 128654001), (3, 42884667), (7, 18379143), (9, 14294889), (21, 6126381), (27, 4764963), (63, 2042127), (81, 1588321), (189, 680709), (567, 226903)]