21068831

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{3767}}^1$

素因数の和:3838

約数の個数: 16

約数和(自身を含む): 26044416

約数和(自身を除く): 4975585

約数列:

[1, 7, 17, 47, 119, 329, 799, 3767, 5593, 26369, 64039, 177049, 448273, 1239343, 3009833, 21068831]

約数ペア:

[(1, 21068831), (7, 3009833), (17, 1239343), (47, 448273), (119, 177049), (329, 64039), (799, 26369), (3767, 5593)]