21950992

素因数分解:

$2^4\times 7^1\times {\mathrm{195991}}^1$

素因数の和:196006

約数の個数: 20

約数和(自身を含む): 48606016

約数和(自身を除く): 26655024

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 195991, 391982, 783964, 1371937, 1567928, 2743874, 3135856, 5487748, 10975496, 21950992]

約数ペア:

[(1, 21950992), (2, 10975496), (4, 5487748), (7, 3135856), (8, 2743874), (14, 1567928), (16, 1371937), (28, 783964), (56, 391982), (112, 195991)]