21563956

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{337}}^1\times {\mathrm{941}}^1$

素因数の和:1299

約数の個数: 24

約数和(自身を含む): 40117896

約数和(自身を除く): 18553940

約数列:

[1, 2, 4, 17, 34, 68, 337, 674, 941, 1348, 1882, 3764, 5729, 11458, 15997, 22916, 31994, 63988, 317117, 634234, 1268468, 5390989, 10781978, 21563956]

約数ペア:

[(1, 21563956), (2, 10781978), (4, 5390989), (17, 1268468), (34, 634234), (68, 317117), (337, 63988), (674, 31994), (941, 22916), (1348, 15997), (1882, 11458), (3764, 5729)]