389984266

素因数分解:

$2^1\times 7^1\times {\mathrm{991}}^1\times {\mathrm{28109}}^1$

素因数の和:29109

約数の個数: 16

約数和(自身を含む): 669242880

約数和(自身を除く): 279258614

約数列:

[1, 2, 7, 14, 991, 1982, 6937, 13874, 28109, 56218, 196763, 393526, 27856019, 55712038, 194992133, 389984266]

約数ペア:

[(1, 389984266), (2, 194992133), (7, 55712038), (14, 27856019), (991, 393526), (1982, 196763), (6937, 56218), (13874, 28109)]