20694616

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{42407}}^1$

素因数の和:42474

約数の個数: 16

約数和(自身を含む): 39439440

約数和(自身を除く): 18744824

約数列:

[1, 2, 4, 8, 61, 122, 244, 488, 42407, 84814, 169628, 339256, 2586827, 5173654, 10347308, 20694616]

約数ペア:

[(1, 20694616), (2, 10347308), (4, 5173654), (8, 2586827), (61, 339256), (122, 169628), (244, 84814), (488, 42407)]