18538851

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:303

約数の個数: 32

約数和(自身を含む): 27648000

約数和(自身を除く): 9109149

約数列:

[1, 3, 19, 23, 57, 69, 79, 179, 237, 437, 537, 1311, 1501, 1817, 3401, 4117, 4503, 5451, 10203, 12351, 14141, 34523, 42423, 78223, 103569, 234669, 268679, 325243, 806037, 975729, 6179617, 18538851]

約数ペア:

[(1, 18538851), (3, 6179617), (19, 975729), (23, 806037), (57, 325243), (69, 268679), (79, 234669), (179, 103569), (237, 78223), (437, 42423), (537, 34523), (1311, 14141), (1501, 12351), (1817, 10203), (3401, 5451), (4117, 4503)]