20872412

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{24967}}^1$

素因数の和:25001

約数の個数: 24

約数和(自身を含む): 41946240

約数和(自身を除く): 21073828

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 418, 836, 24967, 49934, 99868, 274637, 474373, 549274, 948746, 1098548, 1897492, 5218103, 10436206, 20872412]

約数ペア:

[(1, 20872412), (2, 10436206), (4, 5218103), (11, 1897492), (19, 1098548), (22, 948746), (38, 549274), (44, 474373), (76, 274637), (209, 99868), (418, 49934), (836, 24967)]