21089936

素因数分解:

$2^4\times 7^1\times {\mathrm{188303}}^1$

素因数の和:188318

約数の個数: 20

約数和(自身を含む): 46699392

約数和(自身を除く): 25609456

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 188303, 376606, 753212, 1318121, 1506424, 2636242, 3012848, 5272484, 10544968, 21089936]

約数ペア:

[(1, 21089936), (2, 10544968), (4, 5272484), (7, 3012848), (8, 2636242), (14, 1506424), (16, 1318121), (28, 753212), (56, 376606), (112, 188303)]