21169904

素因数分解:

$2^4\times 7^1\times {\mathrm{189017}}^1$

素因数の和:189032

約数の個数: 20

約数和(自身を含む): 46876464

約数和(自身を除く): 25706560

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 189017, 378034, 756068, 1323119, 1512136, 2646238, 3024272, 5292476, 10584952, 21169904]

約数ペア:

[(1, 21169904), (2, 10584952), (4, 5292476), (7, 3024272), (8, 2646238), (14, 1512136), (16, 1323119), (28, 756068), (56, 378034), (112, 189017)]