18361239

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{349}}^1$

素因数の和:455

約数の個数: 32

約数和(自身を含む): 28224000

約数和(自身を除く): 9862761

約数列:

[1, 3, 13, 19, 39, 57, 71, 213, 247, 349, 741, 923, 1047, 1349, 2769, 4047, 4537, 6631, 13611, 17537, 19893, 24779, 52611, 74337, 86203, 258609, 322127, 470801, 966381, 1412403, 6120413, 18361239]

約数ペア:

[(1, 18361239), (3, 6120413), (13, 1412403), (19, 966381), (39, 470801), (57, 322127), (71, 258609), (213, 86203), (247, 74337), (349, 52611), (741, 24779), (923, 19893), (1047, 17537), (1349, 13611), (2769, 6631), (4047, 4537)]