215420737

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{18329}}^1$

素因数の和:18432

約数の個数: 16

約数和(自身を含む): 260432640

約数和(自身を除く): 45011903

約数列:

[1, 7, 23, 73, 161, 511, 1679, 11753, 18329, 128303, 421567, 1338017, 2950969, 9366119, 30774391, 215420737]

約数ペア:

[(1, 215420737), (7, 30774391), (23, 9366119), (73, 2950969), (161, 1338017), (511, 421567), (1679, 128303), (11753, 18329)]