2820191

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:262

約数の個数: 16

約数和(自身を含む): 3276288

約数和(自身を除く): 456097

約数列:

[1, 11, 23, 71, 157, 253, 781, 1633, 1727, 3611, 11147, 17963, 39721, 122617, 256381, 2820191]

約数ペア:

[(1, 2820191), (11, 256381), (23, 122617), (71, 39721), (157, 17963), (253, 11147), (781, 3611), (1633, 1727)]