19867144

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{401}}^1\times {\mathrm{563}}^1$

素因数の和:981

約数の個数: 32

約数和(自身を含む): 40811040

約数和(自身を除く): 20943896

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 401, 563, 802, 1126, 1604, 2252, 3208, 4411, 4504, 6193, 8822, 12386, 17644, 24772, 35288, 49544, 225763, 451526, 903052, 1806104, 2483393, 4966786, 9933572, 19867144]

約数ペア:

[(1, 19867144), (2, 9933572), (4, 4966786), (8, 2483393), (11, 1806104), (22, 903052), (44, 451526), (88, 225763), (401, 49544), (563, 35288), (802, 24772), (1126, 17644), (1604, 12386), (2252, 8822), (3208, 6193), (4411, 4504)]