21519508

素因数分解:

$2^2\times {\mathrm{29}}^2\times {\mathrm{6397}}^1$

素因数の和:6459

約数の個数: 18

約数和(自身を含む): 39008606

約数和(自身を除く): 17489098

約数列:

[1, 2, 4, 29, 58, 116, 841, 1682, 3364, 6397, 12794, 25588, 185513, 371026, 742052, 5379877, 10759754, 21519508]

約数ペア:

[(1, 21519508), (2, 10759754), (4, 5379877), (29, 742052), (58, 371026), (116, 185513), (841, 25588), (1682, 12794), (3364, 6397)]