18164853

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:246

約数の個数: 48

約数和(自身を含む): 31629312

約数和(自身を除く): 13464459

約数列:

[1, 3, 7, 9, 21, 31, 63, 71, 93, 131, 213, 217, 279, 393, 497, 639, 651, 917, 1179, 1491, 1953, 2201, 2751, 4061, 4473, 6603, 8253, 9301, 12183, 15407, 19809, 27903, 28427, 36549, 46221, 65107, 83709, 85281, 138663, 195321, 255843, 288331, 585963, 864993, 2018317, 2594979, 6054951, 18164853]

約数ペア:

[(1, 18164853), (3, 6054951), (7, 2594979), (9, 2018317), (21, 864993), (31, 585963), (63, 288331), (71, 255843), (93, 195321), (131, 138663), (213, 85281), (217, 83709), (279, 65107), (393, 46221), (497, 36549), (639, 28427), (651, 27903), (917, 19809), (1179, 15407), (1491, 12183), (1953, 9301), (2201, 8253), (2751, 6603), (4061, 4473)]