20927753

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{947}}^1$

素因数の和:1013

約数の個数: 24

約数和(自身を含む): 27234144

約数和(自身を除く): 6306391

約数列:

[1, 7, 11, 41, 49, 77, 287, 451, 539, 947, 2009, 3157, 6629, 10417, 22099, 38827, 46403, 72919, 271789, 427097, 510433, 1902523, 2989679, 20927753]

約数ペア:

[(1, 20927753), (7, 2989679), (11, 1902523), (41, 510433), (49, 427097), (77, 271789), (287, 72919), (451, 46403), (539, 38827), (947, 22099), (2009, 10417), (3157, 6629)]