21916636

素因数分解:

$2^2\times 7^1\times {\mathrm{439}}^1\times {\mathrm{1783}}^1$

素因数の和:2233

約数の個数: 24

約数和(自身を含む): 43957760

約数和(自身を除く): 22041124

約数列:

[1, 2, 4, 7, 14, 28, 439, 878, 1756, 1783, 3073, 3566, 6146, 7132, 12292, 12481, 24962, 49924, 782737, 1565474, 3130948, 5479159, 10958318, 21916636]

約数ペア:

[(1, 21916636), (2, 10958318), (4, 5479159), (7, 3130948), (14, 1565474), (28, 782737), (439, 49924), (878, 24962), (1756, 12481), (1783, 12292), (3073, 7132), (3566, 6146)]