20520874

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{4463}}^1$

素因数の和:4506

約数の個数: 24

約数和(自身を含む): 35622720

約数和(自身を除く): 15101846

約数列:

[1, 2, 11, 19, 22, 38, 121, 209, 242, 418, 2299, 4463, 4598, 8926, 49093, 84797, 98186, 169594, 540023, 932767, 1080046, 1865534, 10260437, 20520874]

約数ペア:

[(1, 20520874), (2, 10260437), (11, 1865534), (19, 1080046), (22, 932767), (38, 540023), (121, 169594), (209, 98186), (242, 84797), (418, 49093), (2299, 8926), (4463, 4598)]