20739668

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{709}}^1$

素因数の和:887

約数の個数: 24

約数和(自身を含む): 37215360

約数和(自身を除く): 16475692

約数列:

[1, 2, 4, 71, 103, 142, 206, 284, 412, 709, 1418, 2836, 7313, 14626, 29252, 50339, 73027, 100678, 146054, 201356, 292108, 5184917, 10369834, 20739668]

約数ペア:

[(1, 20739668), (2, 10369834), (4, 5184917), (71, 292108), (103, 201356), (142, 146054), (206, 100678), (284, 73027), (412, 50339), (709, 29252), (1418, 14626), (2836, 7313)]