31971471

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{11447}}^1$

素因数の和:11483

約数の個数: 24

約数和(自身を含む): 52202880

約数和(自身を除く): 20231409

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 11447, 34341, 80129, 217493, 240387, 560903, 652479, 1522451, 1682709, 4567353, 10657157, 31971471]

約数ペア:

[(1, 31971471), (3, 10657157), (7, 4567353), (19, 1682709), (21, 1522451), (49, 652479), (57, 560903), (133, 240387), (147, 217493), (399, 80129), (931, 34341), (2793, 11447)]