21447110

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{49877}}^1$

素因数の和:49927

約数の個数: 16

約数和(自身を含む): 39503376

約数和(自身を除く): 18056266

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 49877, 99754, 249385, 498770, 2144711, 4289422, 10723555, 21447110]

約数ペア:

[(1, 21447110), (2, 10723555), (5, 4289422), (10, 2144711), (43, 498770), (86, 249385), (215, 99754), (430, 49877)]