19727643

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{337}}^1$

素因数の和:451

約数の個数: 32

約数和(自身を含む): 30284800

約数和(自身を除く): 10557157

約数列:

[1, 3, 13, 19, 39, 57, 79, 237, 247, 337, 741, 1011, 1027, 1501, 3081, 4381, 4503, 6403, 13143, 19209, 19513, 26623, 58539, 79869, 83239, 249717, 346099, 505837, 1038297, 1517511, 6575881, 19727643]

約数ペア:

[(1, 19727643), (3, 6575881), (13, 1517511), (19, 1038297), (39, 505837), (57, 346099), (79, 249717), (237, 83239), (247, 79869), (337, 58539), (741, 26623), (1011, 19513), (1027, 19209), (1501, 13143), (3081, 6403), (4381, 4503)]