21562247

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{673}}^1$

素因数の和:902

約数の個数: 16

約数和(自身を含む): 25881600

約数和(自身を除く): 4319353

約数列:

[1, 7, 23, 161, 199, 673, 1393, 4577, 4711, 15479, 32039, 108353, 133927, 937489, 3080321, 21562247]

約数ペア:

[(1, 21562247), (7, 3080321), (23, 937489), (161, 133927), (199, 108353), (673, 32039), (1393, 15479), (4577, 4711)]