21681016

素因数分解:

$2^3\times 7^1\times {\mathrm{387161}}^1$

素因数の和:387174

約数の個数: 16

約数和(自身を含む): 46459440

約数和(自身を除く): 24778424

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 387161, 774322, 1548644, 2710127, 3097288, 5420254, 10840508, 21681016]

約数ペア:

[(1, 21681016), (2, 10840508), (4, 5420254), (7, 3097288), (8, 2710127), (14, 1548644), (28, 774322), (56, 387161)]