20760663

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{347}}^1$

素因数の和:412

約数の個数: 48

約数和(自身を含む): 36180864

約数和(自身を除く): 15420201

約数列:

[1, 3, 7, 11, 21, 33, 37, 49, 77, 111, 147, 231, 259, 347, 407, 539, 777, 1041, 1221, 1617, 1813, 2429, 2849, 3817, 5439, 7287, 8547, 11451, 12839, 17003, 19943, 26719, 38517, 51009, 59829, 80157, 89873, 141229, 187033, 269619, 423687, 561099, 629111, 988603, 1887333, 2965809, 6920221, 20760663]

約数ペア:

[(1, 20760663), (3, 6920221), (7, 2965809), (11, 1887333), (21, 988603), (33, 629111), (37, 561099), (49, 423687), (77, 269619), (111, 187033), (147, 141229), (231, 89873), (259, 80157), (347, 59829), (407, 51009), (539, 38517), (777, 26719), (1041, 19943), (1221, 17003), (1617, 12839), (1813, 11451), (2429, 8547), (2849, 7287), (3817, 5439)]