28971651

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{643}}^1\times {\mathrm{653}}^1$

素因数の和:1322

約数の個数: 16

約数和(自身を含む): 40432896

約数和(自身を除く): 11461245

約数列:

[1, 3, 23, 69, 643, 653, 1929, 1959, 14789, 15019, 44367, 45057, 419879, 1259637, 9657217, 28971651]

約数ペア:

[(1, 28971651), (3, 9657217), (23, 1259637), (69, 419879), (643, 45057), (653, 44367), (1929, 15019), (1959, 14789)]