18112339

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1$

素因数の和:271

約数の個数: 32

約数和(自身を含む): 23592960

約数和(自身を除く): 5480621

約数列:

[1, 7, 19, 23, 31, 133, 161, 191, 217, 437, 589, 713, 1337, 3059, 3629, 4123, 4393, 4991, 5921, 13547, 25403, 30751, 41447, 83467, 94829, 112499, 136183, 584269, 787493, 953281, 2587477, 18112339]

約数ペア:

[(1, 18112339), (7, 2587477), (19, 953281), (23, 787493), (31, 584269), (133, 136183), (161, 112499), (191, 94829), (217, 83467), (437, 41447), (589, 30751), (713, 25403), (1337, 13547), (3059, 5921), (3629, 4991), (4123, 4393)]