21020314

素因数分解:

$2^1\times 7^2\times {\mathrm{191}}^1\times {\mathrm{1123}}^1$

素因数の和:1330

約数の個数: 24

約数和(自身を含む): 36903168

約数和(自身を除く): 15882854

約数列:

[1, 2, 7, 14, 49, 98, 191, 382, 1123, 1337, 2246, 2674, 7861, 9359, 15722, 18718, 55027, 110054, 214493, 428986, 1501451, 3002902, 10510157, 21020314]

約数ペア:

[(1, 21020314), (2, 10510157), (7, 3002902), (14, 1501451), (49, 428986), (98, 214493), (191, 110054), (382, 55027), (1123, 18718), (1337, 15722), (2246, 9359), (2674, 7861)]