21222992

素因数分解:

$2^4\times 7^1\times {\mathrm{189491}}^1$

素因数の和:189506

約数の個数: 20

約数和(自身を含む): 46994016

約数和(自身を除く): 25771024

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 189491, 378982, 757964, 1326437, 1515928, 2652874, 3031856, 5305748, 10611496, 21222992]

約数ペア:

[(1, 21222992), (2, 10611496), (4, 5305748), (7, 3031856), (8, 2652874), (14, 1515928), (16, 1326437), (28, 757964), (56, 378982), (112, 189491)]