778827021

素因数分解:

$3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{129223}}^1$

素因数の和:129281

約数の個数: 24

約数和(自身を含む): 1237449024

約数和(自身を除く): 458622003

約数列:

[1, 3, 7, 21, 41, 49, 123, 147, 287, 861, 2009, 6027, 129223, 387669, 904561, 2713683, 5298143, 6331927, 15894429, 18995781, 37087001, 111261003, 259609007, 778827021]

約数ペア:

[(1, 778827021), (3, 259609007), (7, 111261003), (21, 37087001), (41, 18995781), (49, 15894429), (123, 6331927), (147, 5298143), (287, 2713683), (861, 904561), (2009, 387669), (6027, 129223)]