18348687

素因数分解:

$3^5\times 7^2\times {\mathrm{23}}^1\times {\mathrm{67}}^1$

素因数の和:119

約数の個数: 72

約数和(自身を含む): 33860736

約数和(自身を除く): 15512049

約数列:

[1, 3, 7, 9, 21, 23, 27, 49, 63, 67, 69, 81, 147, 161, 189, 201, 207, 243, 441, 469, 483, 567, 603, 621, 1127, 1323, 1407, 1449, 1541, 1701, 1809, 1863, 3283, 3381, 3969, 4221, 4347, 4623, 5427, 5589, 9849, 10143, 10787, 11907, 12663, 13041, 13869, 16281, 29547, 30429, 32361, 37989, 39123, 41607, 75509, 88641, 91287, 97083, 113967, 124821, 226527, 265923, 273861, 291249, 374463, 679581, 797769, 873747, 2038743, 2621241, 6116229, 18348687]

約数ペア:

[(1, 18348687), (3, 6116229), (7, 2621241), (9, 2038743), (21, 873747), (23, 797769), (27, 679581), (49, 374463), (63, 291249), (67, 273861), (69, 265923), (81, 226527), (147, 124821), (161, 113967), (189, 97083), (201, 91287), (207, 88641), (243, 75509), (441, 41607), (469, 39123), (483, 37989), (567, 32361), (603, 30429), (621, 29547), (1127, 16281), (1323, 13869), (1407, 13041), (1449, 12663), (1541, 11907), (1701, 10787), (1809, 10143), (1863, 9849), (3283, 5589), (3381, 5427), (3969, 4623), (4221, 4347)]