28389918

素因数分解:

$2^1\times 3^1\times {\mathrm{71}}^1\times {\mathrm{66643}}^1$

素因数の和:66719

約数の個数: 16

約数和(自身を含む): 57580416

約数和(自身を除く): 29190498

約数列:

[1, 2, 3, 6, 71, 142, 213, 426, 66643, 133286, 199929, 399858, 4731653, 9463306, 14194959, 28389918]

約数ペア:

[(1, 28389918), (2, 14194959), (3, 9463306), (6, 4731653), (71, 399858), (142, 199929), (213, 133286), (426, 66643)]