31290511

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1$

素因数の和:295

約数の個数: 32

約数和(自身を含む): 40227840

約数和(自身を除く): 8937329

約数列:

[1, 7, 19, 23, 53, 133, 161, 193, 371, 437, 1007, 1219, 1351, 3059, 3667, 4439, 7049, 8533, 10229, 23161, 25669, 31073, 71603, 84341, 162127, 194351, 235267, 590387, 1360457, 1646869, 4470073, 31290511]

約数ペア:

[(1, 31290511), (7, 4470073), (19, 1646869), (23, 1360457), (53, 590387), (133, 235267), (161, 194351), (193, 162127), (371, 84341), (437, 71603), (1007, 31073), (1219, 25669), (1351, 23161), (3059, 10229), (3667, 8533), (4439, 7049)]