21116824

素因数分解:

$2^3\times {\mathrm{197}}^1\times {\mathrm{13399}}^1$

素因数の和:13602

約数の個数: 16

約数和(自身を含む): 39798000

約数和(自身を除く): 18681176

約数列:

[1, 2, 4, 8, 197, 394, 788, 1576, 13399, 26798, 53596, 107192, 2639603, 5279206, 10558412, 21116824]

約数ペア:

[(1, 21116824), (2, 10558412), (4, 5279206), (8, 2639603), (197, 107192), (394, 53596), (788, 26798), (1576, 13399)]