18665478

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{8863}}^1$

素因数の和:8890

約数の個数: 40

約数和(自身を含む): 45046848

約数和(自身を除く): 26381370

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 81, 117, 162, 234, 351, 702, 1053, 2106, 8863, 17726, 26589, 53178, 79767, 115219, 159534, 230438, 239301, 345657, 478602, 691314, 717903, 1036971, 1435806, 2073942, 3110913, 6221826, 9332739, 18665478]

約数ペア:

[(1, 18665478), (2, 9332739), (3, 6221826), (6, 3110913), (9, 2073942), (13, 1435806), (18, 1036971), (26, 717903), (27, 691314), (39, 478602), (54, 345657), (78, 239301), (81, 230438), (117, 159534), (162, 115219), (234, 79767), (351, 53178), (702, 26589), (1053, 17726), (2106, 8863)]