28612857

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{643}}^1$

素因数の和:829

約数の個数: 32

約数和(自身を含む): 47315968

約数和(自身を除く): 18703111

約数列:

[1, 3, 7, 13, 21, 39, 91, 163, 273, 489, 643, 1141, 1929, 2119, 3423, 4501, 6357, 8359, 13503, 14833, 25077, 44499, 58513, 104809, 175539, 314427, 733663, 1362517, 2200989, 4087551, 9537619, 28612857]

約数ペア:

[(1, 28612857), (3, 9537619), (7, 4087551), (13, 2200989), (21, 1362517), (39, 733663), (91, 314427), (163, 175539), (273, 104809), (489, 58513), (643, 44499), (1141, 25077), (1929, 14833), (2119, 13503), (3423, 8359), (4501, 6357)]