2638990207

素因数分解:

$7^3\times {\mathrm{997}}^1\times {\mathrm{7717}}^1$

素因数の和:8735

約数の個数: 16

約数和(自身を含む): 3081025600

約数和(自身を除く): 442035393

約数列:

[1, 7, 49, 343, 997, 6979, 7717, 48853, 54019, 341971, 378133, 2646931, 7693849, 53856943, 376998601, 2638990207]

約数ペア:

[(1, 2638990207), (7, 376998601), (49, 53856943), (343, 7693849), (997, 2646931), (6979, 378133), (7717, 341971), (48853, 54019)]