21202790

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{43271}}^1$

素因数の和:43292

約数の個数: 24

約数和(自身を含む): 44397072

約数和(自身を除く): 23194282

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 43271, 86542, 216355, 302897, 432710, 605794, 1514485, 2120279, 3028970, 4240558, 10601395, 21202790]

約数ペア:

[(1, 21202790), (2, 10601395), (5, 4240558), (7, 3028970), (10, 2120279), (14, 1514485), (35, 605794), (49, 432710), (70, 302897), (98, 216355), (245, 86542), (490, 43271)]