21181188

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{252157}}^1$

素因数の和:252171

約数の個数: 24

約数和(自身を含む): 56483392

約数和(自身を除く): 35302204

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 252157, 504314, 756471, 1008628, 1512942, 1765099, 3025884, 3530198, 5295297, 7060396, 10590594, 21181188]

約数ペア:

[(1, 21181188), (2, 10590594), (3, 7060396), (4, 5295297), (6, 3530198), (7, 3025884), (12, 1765099), (14, 1512942), (21, 1008628), (28, 756471), (42, 504314), (84, 252157)]