21878314

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{3797}}^1$

素因数の和:3909

約数の個数: 16

約数和(自身を含む): 34090848

約数和(自身を除く): 12212534

約数列:

[1, 2, 43, 67, 86, 134, 2881, 3797, 5762, 7594, 163271, 254399, 326542, 508798, 10939157, 21878314]

約数ペア:

[(1, 21878314), (2, 10939157), (43, 508798), (67, 326542), (86, 254399), (134, 163271), (2881, 7594), (3797, 5762)]