81681003

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{1571}}^1$

素因数の和:1739

約数の個数: 24

約数和(自身を含む): 121389840

約数和(自身を除く): 39708837

約数列:

[1, 3, 9, 53, 109, 159, 327, 477, 981, 1571, 4713, 5777, 14139, 17331, 51993, 83263, 171239, 249789, 513717, 749367, 1541151, 9075667, 27227001, 81681003]

約数ペア:

[(1, 81681003), (3, 27227001), (9, 9075667), (53, 1541151), (109, 749367), (159, 513717), (327, 249789), (477, 171239), (981, 83263), (1571, 51993), (4713, 17331), (5777, 14139)]