40820157

素因数分解:

$3^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{4127}}^1$

素因数の和:4297

約数の個数: 24

約数和(自身を含む): 67831296

約数和(自身を除く): 27011139

約数列:

[1, 3, 7, 9, 21, 63, 157, 471, 1099, 1413, 3297, 4127, 9891, 12381, 28889, 37143, 86667, 260001, 647939, 1943817, 4535573, 5831451, 13606719, 40820157]

約数ペア:

[(1, 40820157), (3, 13606719), (7, 5831451), (9, 4535573), (21, 1943817), (63, 647939), (157, 260001), (471, 86667), (1099, 37143), (1413, 28889), (3297, 12381), (4127, 9891)]