28990647

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{12437}}^1$

素因数の和:12487

約数の個数: 24

約数和(自身を含む): 49154976

約数和(自身を除く): 20164329

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 259, 333, 777, 2331, 12437, 37311, 87059, 111933, 261177, 460169, 783531, 1380507, 3221183, 4141521, 9663549, 28990647]

約数ペア:

[(1, 28990647), (3, 9663549), (7, 4141521), (9, 3221183), (21, 1380507), (37, 783531), (63, 460169), (111, 261177), (259, 111933), (333, 87059), (777, 37311), (2331, 12437)]