20684216

素因数分解:

$2^3\times 7^1\times {\mathrm{369361}}^1$

素因数の和:369374

約数の個数: 16

約数和(自身を含む): 44323440

約数和(自身を除く): 23639224

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 369361, 738722, 1477444, 2585527, 2954888, 5171054, 10342108, 20684216]

約数ペア:

[(1, 20684216), (2, 10342108), (4, 5171054), (7, 2954888), (8, 2585527), (14, 1477444), (28, 738722), (56, 369361)]