2531221

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{463}}^1$

素因数の和:552

約数の個数: 16

約数和(自身を含む): 3207168

約数和(自身を除く): 675947

約数列:

[1, 7, 11, 71, 77, 463, 497, 781, 3241, 5093, 5467, 32873, 35651, 230111, 361603, 2531221]

約数ペア:

[(1, 2531221), (7, 361603), (11, 230111), (71, 35651), (77, 32873), (463, 5467), (497, 5093), (781, 3241)]