18339321

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:262

約数の個数: 64

約数和(自身を含む): 34062336

約数和(自身を除く): 15723015

約数列:

[1, 3, 7, 11, 13, 21, 31, 33, 39, 77, 91, 93, 143, 197, 217, 231, 273, 341, 403, 429, 591, 651, 1001, 1023, 1209, 1379, 2167, 2387, 2561, 2821, 3003, 4137, 4433, 6107, 6501, 7161, 7683, 8463, 13299, 15169, 17927, 18321, 28171, 31031, 42749, 45507, 53781, 67177, 79391, 84513, 93093, 128247, 197197, 201531, 238173, 470239, 555737, 591591, 873301, 1410717, 1667211, 2619903, 6113107, 18339321]

約数ペア:

[(1, 18339321), (3, 6113107), (7, 2619903), (11, 1667211), (13, 1410717), (21, 873301), (31, 591591), (33, 555737), (39, 470239), (77, 238173), (91, 201531), (93, 197197), (143, 128247), (197, 93093), (217, 84513), (231, 79391), (273, 67177), (341, 53781), (403, 45507), (429, 42749), (591, 31031), (651, 28171), (1001, 18321), (1023, 17927), (1209, 15169), (1379, 13299), (2167, 8463), (2387, 7683), (2561, 7161), (2821, 6501), (3003, 6107), (4137, 4433)]