81341931

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{233}}^1$

素因数の和:467

約数の個数: 32

約数和(自身を含む): 121305600

約数和(自身を除く): 39963669

約数列:

[1, 3, 11, 33, 71, 149, 213, 233, 447, 699, 781, 1639, 2343, 2563, 4917, 7689, 10579, 16543, 31737, 34717, 49629, 104151, 116369, 181973, 349107, 381887, 545919, 1145661, 2464907, 7394721, 27113977, 81341931]

約数ペア:

[(1, 81341931), (3, 27113977), (11, 7394721), (33, 2464907), (71, 1145661), (149, 545919), (213, 381887), (233, 349107), (447, 181973), (699, 116369), (781, 104151), (1639, 49629), (2343, 34717), (2563, 31737), (4917, 16543), (7689, 10579)]