11991721

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:229

約数の個数: 24

約数和(自身を含む): 14708736

約数和(自身を除く): 2717015

約数列:

[1, 7, 41, 47, 49, 127, 287, 329, 889, 1927, 2009, 2303, 5207, 5969, 6223, 13489, 36449, 41783, 94423, 244729, 255143, 292481, 1713103, 11991721]

約数ペア:

[(1, 11991721), (7, 1713103), (41, 292481), (47, 255143), (49, 244729), (127, 94423), (287, 41783), (329, 36449), (889, 13489), (1927, 6223), (2009, 5969), (2303, 5207)]