21047433

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{8737}}^1$

素因数の和:8824

約数の個数: 16

約数和(自身を含む): 31037376

約数和(自身を除く): 9989943

約数列:

[1, 3, 11, 33, 73, 219, 803, 2409, 8737, 26211, 96107, 288321, 637801, 1913403, 7015811, 21047433]

約数ペア:

[(1, 21047433), (3, 7015811), (11, 1913403), (33, 637801), (73, 288321), (219, 96107), (803, 26211), (2409, 8737)]