31179687

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^2\times {\mathrm{73}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 53791488

約数和(自身を除く): 22611801

約数列:

[1, 3, 7, 11, 21, 33, 43, 73, 77, 129, 219, 231, 301, 473, 511, 803, 903, 1419, 1533, 1849, 2409, 3139, 3311, 5547, 5621, 9417, 9933, 12943, 16863, 20339, 21973, 34529, 38829, 61017, 65919, 103587, 134977, 142373, 241703, 404931, 427119, 725109, 944839, 1484747, 2834517, 4454241, 10393229, 31179687]

約数ペア:

[(1, 31179687), (3, 10393229), (7, 4454241), (11, 2834517), (21, 1484747), (33, 944839), (43, 725109), (73, 427119), (77, 404931), (129, 241703), (219, 142373), (231, 134977), (301, 103587), (473, 65919), (511, 61017), (803, 38829), (903, 34529), (1419, 21973), (1533, 20339), (1849, 16863), (2409, 12943), (3139, 9933), (3311, 9417), (5547, 5621)]