257233639

素因数分解:

${\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1\times {\mathrm{1217}}^1$

素因数の和:1530

約数の個数: 16

約数和(自身を含む): 282381120

約数和(自身を除く): 25147481

約数列:

[1, 13, 71, 229, 923, 1217, 2977, 15821, 16259, 86407, 211367, 278693, 1123291, 3623009, 19787203, 257233639]

約数ペア:

[(1, 257233639), (13, 19787203), (71, 3623009), (229, 1123291), (923, 278693), (1217, 211367), (2977, 86407), (15821, 16259)]