20835388

素因数分解:

$2^2\times 7^2\times {\mathrm{106303}}^1$

素因数の和:106321

約数の個数: 18

約数和(自身を含む): 42415296

約数和(自身を除く): 21579908

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 106303, 212606, 425212, 744121, 1488242, 2976484, 5208847, 10417694, 20835388]

約数ペア:

[(1, 20835388), (2, 10417694), (4, 5208847), (7, 2976484), (14, 1488242), (28, 744121), (49, 425212), (98, 212606), (196, 106303)]