18654219

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:102

約数の個数: 80

約数和(自身を含む): 33454080

約数和(自身を除く): 14799861

約数列:

[1, 3, 9, 17, 19, 23, 27, 31, 51, 57, 69, 81, 93, 153, 171, 207, 279, 323, 391, 437, 459, 513, 527, 589, 621, 713, 837, 969, 1173, 1311, 1377, 1539, 1581, 1767, 1863, 2139, 2511, 2907, 3519, 3933, 4743, 5301, 6417, 7429, 8721, 10013, 10557, 11799, 12121, 13547, 14229, 15903, 19251, 22287, 26163, 30039, 31671, 35397, 36363, 40641, 42687, 47709, 57753, 66861, 90117, 109089, 121923, 200583, 230299, 270351, 327267, 365769, 601749, 690897, 811053, 981801, 1097307, 2072691, 6218073, 18654219]

約数ペア:

[(1, 18654219), (3, 6218073), (9, 2072691), (17, 1097307), (19, 981801), (23, 811053), (27, 690897), (31, 601749), (51, 365769), (57, 327267), (69, 270351), (81, 230299), (93, 200583), (153, 121923), (171, 109089), (207, 90117), (279, 66861), (323, 57753), (391, 47709), (437, 42687), (459, 40641), (513, 36363), (527, 35397), (589, 31671), (621, 30039), (713, 26163), (837, 22287), (969, 19251), (1173, 15903), (1311, 14229), (1377, 13547), (1539, 12121), (1581, 11799), (1767, 10557), (1863, 10013), (2139, 8721), (2511, 7429), (2907, 6417), (3519, 5301), (3933, 4743)]