21144347

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{353}}^1$

素因数の和:602

約数の個数: 16

約数和(自身を含む): 24921600

約数和(自身を除く): 3777253

約数列:

[1, 7, 43, 199, 301, 353, 1393, 2471, 8557, 15179, 59899, 70247, 106253, 491729, 3020621, 21144347]

約数ペア:

[(1, 21144347), (7, 3020621), (43, 491729), (199, 106253), (301, 70247), (353, 59899), (1393, 15179), (2471, 8557)]