31531689

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{463}}^1$

素因数の和:546

約数の個数: 48

約数和(自身を含む): 55590912

約数和(自身を除く): 24059223

約数列:

[1, 3, 7, 9, 21, 23, 47, 63, 69, 141, 161, 207, 329, 423, 463, 483, 987, 1081, 1389, 1449, 2961, 3241, 3243, 4167, 7567, 9723, 9729, 10649, 21761, 22701, 29169, 31947, 65283, 68103, 74543, 95841, 152327, 195849, 223629, 456981, 500503, 670887, 1370943, 1501509, 3503521, 4504527, 10510563, 31531689]

約数ペア:

[(1, 31531689), (3, 10510563), (7, 4504527), (9, 3503521), (21, 1501509), (23, 1370943), (47, 670887), (63, 500503), (69, 456981), (141, 223629), (161, 195849), (207, 152327), (329, 95841), (423, 74543), (463, 68103), (483, 65283), (987, 31947), (1081, 29169), (1389, 22701), (1449, 21761), (2961, 10649), (3241, 9729), (3243, 9723), (4167, 7567)]