18516267

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{347}}^1$

素因数の和:389

約数の個数: 54

約数和(自身を含む): 34296444

約数和(自身を除く): 15780177

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 63, 77, 99, 121, 147, 231, 347, 363, 441, 539, 693, 847, 1041, 1089, 1617, 2429, 2541, 3123, 3817, 4851, 5929, 7287, 7623, 11451, 17003, 17787, 21861, 26719, 34353, 41987, 51009, 53361, 80157, 125961, 153027, 187033, 240471, 293909, 377883, 561099, 881727, 1683297, 2057363, 2645181, 6172089, 18516267]

約数ペア:

[(1, 18516267), (3, 6172089), (7, 2645181), (9, 2057363), (11, 1683297), (21, 881727), (33, 561099), (49, 377883), (63, 293909), (77, 240471), (99, 187033), (121, 153027), (147, 125961), (231, 80157), (347, 53361), (363, 51009), (441, 41987), (539, 34353), (693, 26719), (847, 21861), (1041, 17787), (1089, 17003), (1617, 11451), (2429, 7623), (2541, 7287), (3123, 5929), (3817, 4851)]