18405522

素因数分解:

$2^1\times 3^3\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:232

約数の個数: 64

約数和(自身を含む): 42768000

約数和(自身を除く): 24362478

約数列:

[1, 2, 3, 6, 9, 18, 27, 53, 54, 59, 106, 109, 118, 159, 177, 218, 318, 327, 354, 477, 531, 654, 954, 981, 1062, 1431, 1593, 1962, 2862, 2943, 3127, 3186, 5777, 5886, 6254, 6431, 9381, 11554, 12862, 17331, 18762, 19293, 28143, 34662, 38586, 51993, 56286, 57879, 84429, 103986, 115758, 155979, 168858, 173637, 311958, 340843, 347274, 681686, 1022529, 2045058, 3067587, 6135174, 9202761, 18405522]

約数ペア:

[(1, 18405522), (2, 9202761), (3, 6135174), (6, 3067587), (9, 2045058), (18, 1022529), (27, 681686), (53, 347274), (54, 340843), (59, 311958), (106, 173637), (109, 168858), (118, 155979), (159, 115758), (177, 103986), (218, 84429), (318, 57879), (327, 56286), (354, 51993), (477, 38586), (531, 34662), (654, 28143), (954, 19293), (981, 18762), (1062, 17331), (1431, 12862), (1593, 11554), (1962, 9381), (2862, 6431), (2943, 6254), (3127, 5886), (3186, 5777)]