28918281

素因数分解:

$3^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{1549}}^1$

素因数の和:1693

約数の個数: 24

約数和(自身を含む): 45235200

約数和(自身を除く): 16316919

約数列:

[1, 3, 7, 21, 49, 127, 147, 381, 889, 1549, 2667, 4647, 6223, 10843, 18669, 32529, 75901, 196723, 227703, 590169, 1377061, 4131183, 9639427, 28918281]

約数ペア:

[(1, 28918281), (3, 9639427), (7, 4131183), (21, 1377061), (49, 590169), (127, 227703), (147, 196723), (381, 75901), (889, 32529), (1549, 18669), (2667, 10843), (4647, 6223)]