18712053

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1$

素因数の和:263

約数の個数: 40

約数和(自身を含む): 30108672

約数和(自身を除く): 11396619

約数列:

[1, 3, 9, 17, 27, 51, 81, 107, 127, 153, 321, 381, 459, 963, 1143, 1377, 1819, 2159, 2889, 3429, 5457, 6477, 8667, 10287, 13589, 16371, 19431, 40767, 49113, 58293, 122301, 147339, 174879, 231013, 366903, 693039, 1100709, 2079117, 6237351, 18712053]

約数ペア:

[(1, 18712053), (3, 6237351), (9, 2079117), (17, 1100709), (27, 693039), (51, 366903), (81, 231013), (107, 174879), (127, 147339), (153, 122301), (321, 58293), (381, 49113), (459, 40767), (963, 19431), (1143, 16371), (1377, 13589), (1819, 10287), (2159, 8667), (2889, 6477), (3429, 5457)]