20321588

素因数分解:

$2^2\times 7^1\times {\mathrm{557}}^1\times {\mathrm{1303}}^1$

素因数の和:1871

約数の個数: 24

約数和(自身を含む): 40747392

約数和(自身を除く): 20425804

約数列:

[1, 2, 4, 7, 14, 28, 557, 1114, 1303, 2228, 2606, 3899, 5212, 7798, 9121, 15596, 18242, 36484, 725771, 1451542, 2903084, 5080397, 10160794, 20321588]

約数ペア:

[(1, 20321588), (2, 10160794), (4, 5080397), (7, 2903084), (14, 1451542), (28, 725771), (557, 36484), (1114, 18242), (1303, 15596), (2228, 9121), (2606, 7798), (3899, 5212)]