21367912

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{2663}}^1$

素因数の和:2745

約数の個数: 32

約数和(自身を含む): 43156800

約数和(自身を除く): 21788888

約数列:

[1, 2, 4, 8, 17, 34, 59, 68, 118, 136, 236, 472, 1003, 2006, 2663, 4012, 5326, 8024, 10652, 21304, 45271, 90542, 157117, 181084, 314234, 362168, 628468, 1256936, 2670989, 5341978, 10683956, 21367912]

約数ペア:

[(1, 21367912), (2, 10683956), (4, 5341978), (8, 2670989), (17, 1256936), (34, 628468), (59, 362168), (68, 314234), (118, 181084), (136, 157117), (236, 90542), (472, 45271), (1003, 21304), (2006, 10652), (2663, 8024), (4012, 5326)]