21555899

素因数分解:

${\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{461}}^1$

素因数の和:610

約数の個数: 16

約数和(自身を含む): 23950080

約数和(自身を除く): 2394181

約数列:

[1, 19, 23, 107, 437, 461, 2033, 2461, 8759, 10603, 46759, 49327, 201457, 937213, 1134521, 21555899]

約数ペア:

[(1, 21555899), (19, 1134521), (23, 937213), (107, 201457), (437, 49327), (461, 46759), (2033, 10603), (2461, 8759)]