28138649

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{5147}}^1$

素因数の和:5236

約数の個数: 16

約数和(自身を含む): 35582976

約数和(自身を除く): 7444327

約数列:

[1, 7, 11, 71, 77, 497, 781, 5147, 5467, 36029, 56617, 365437, 396319, 2558059, 4019807, 28138649]

約数ペア:

[(1, 28138649), (7, 4019807), (11, 2558059), (71, 396319), (77, 365437), (497, 56617), (781, 36029), (5147, 5467)]