20539912

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{135131}}^1$

素因数の和:135156

約数の個数: 16

約数和(自身を含む): 40539600

約数和(自身を除く): 19999688

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 135131, 270262, 540524, 1081048, 2567489, 5134978, 10269956, 20539912]

約数ペア:

[(1, 20539912), (2, 10269956), (4, 5134978), (8, 2567489), (19, 1081048), (38, 540524), (76, 270262), (152, 135131)]