21512912

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1103}}^1$

素因数の和:1187

約数の個数: 40

約数和(自身を含む): 44354304

約数和(自身を除く): 22841392

約数列:

[1, 2, 4, 8, 16, 23, 46, 53, 92, 106, 184, 212, 368, 424, 848, 1103, 1219, 2206, 2438, 4412, 4876, 8824, 9752, 17648, 19504, 25369, 50738, 58459, 101476, 116918, 202952, 233836, 405904, 467672, 935344, 1344557, 2689114, 5378228, 10756456, 21512912]

約数ペア:

[(1, 21512912), (2, 10756456), (4, 5378228), (8, 2689114), (16, 1344557), (23, 935344), (46, 467672), (53, 405904), (92, 233836), (106, 202952), (184, 116918), (212, 101476), (368, 58459), (424, 50738), (848, 25369), (1103, 19504), (1219, 17648), (2206, 9752), (2438, 8824), (4412, 4876)]