21083788

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{1373}}^1$

素因数の和:1737

約数の個数: 24

約数和(自身を含む): 40395600

約数和(自身を除く): 19311812

約数列:

[1, 2, 4, 11, 22, 44, 349, 698, 1373, 1396, 2746, 3839, 5492, 7678, 15103, 15356, 30206, 60412, 479177, 958354, 1916708, 5270947, 10541894, 21083788]

約数ペア:

[(1, 21083788), (2, 10541894), (4, 5270947), (11, 1916708), (22, 958354), (44, 479177), (349, 60412), (698, 30206), (1373, 15356), (1396, 15103), (2746, 7678), (3839, 5492)]