21595679

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1\times {\mathrm{419}}^1$

素因数の和:662

約数の個数: 16

約数和(自身を含む): 25536000

約数和(自身を除く): 3940321

約数列:

[1, 7, 37, 199, 259, 419, 1393, 2933, 7363, 15503, 51541, 83381, 108521, 583667, 3085097, 21595679]

約数ペア:

[(1, 21595679), (7, 3085097), (37, 583667), (199, 108521), (259, 83381), (419, 51541), (1393, 15503), (2933, 7363)]