20404442

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{59}}^1\times {\mathrm{479}}^1$

素因数の和:578

約数の個数: 24

約数和(自身を含む): 32918400

約数和(自身を除く): 12513958

約数列:

[1, 2, 19, 38, 59, 118, 361, 479, 722, 958, 1121, 2242, 9101, 18202, 21299, 28261, 42598, 56522, 172919, 345838, 536959, 1073918, 10202221, 20404442]

約数ペア:

[(1, 20404442), (2, 10202221), (19, 1073918), (38, 536959), (59, 345838), (118, 172919), (361, 56522), (479, 42598), (722, 28261), (958, 21299), (1121, 18202), (2242, 9101)]