28732209

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{12263}}^1$

素因数の和:12348

約数の個数: 16

約数和(自身を含む): 42384384

約数和(自身を除く): 13652175

約数列:

[1, 3, 11, 33, 71, 213, 781, 2343, 12263, 36789, 134893, 404679, 870673, 2612019, 9577403, 28732209]

約数ペア:

[(1, 28732209), (3, 9577403), (11, 2612019), (33, 870673), (71, 404679), (213, 134893), (781, 36789), (2343, 12263)]