5251281

素因数分解:

$3^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{257}}^1$

素因数の和:413

約数の個数: 24

約数和(自身を含む): 8235360

約数和(自身を除く): 2984079

約数列:

[1, 3, 7, 21, 49, 139, 147, 257, 417, 771, 973, 1799, 2919, 5397, 6811, 12593, 20433, 35723, 37779, 107169, 250061, 750183, 1750427, 5251281]

約数ペア:

[(1, 5251281), (3, 1750427), (7, 750183), (21, 250061), (49, 107169), (139, 37779), (147, 35723), (257, 20433), (417, 12593), (771, 6811), (973, 5397), (1799, 2919)]