21497373

素因数分解:

$3^3\times {\mathrm{199}}^1\times {\mathrm{4001}}^1$

素因数の和:4209

約数の個数: 16

約数和(自身を含む): 32016000

約数和(自身を除く): 10518627

約数列:

[1, 3, 9, 27, 199, 597, 1791, 4001, 5373, 12003, 36009, 108027, 796199, 2388597, 7165791, 21497373]

約数ペア:

[(1, 21497373), (3, 7165791), (9, 2388597), (27, 796199), (199, 108027), (597, 36009), (1791, 12003), (4001, 5373)]