20845979

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{2791}}^1$

素因数の和:2906

約数の個数: 16

約数和(自身を含む): 26267136

約数和(自身を除く): 5421157

約数列:

[1, 7, 11, 77, 97, 679, 1067, 2791, 7469, 19537, 30701, 214907, 270727, 1895089, 2977997, 20845979]

約数ペア:

[(1, 20845979), (7, 2977997), (11, 1895089), (77, 270727), (97, 214907), (679, 30701), (1067, 19537), (2791, 7469)]