21084699

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{5521}}^1$

素因数の和:5610

約数の個数: 16

約数和(自身を含む): 30039680

約数和(自身を除く): 8954981

約数列:

[1, 3, 19, 57, 67, 201, 1273, 3819, 5521, 16563, 104899, 314697, 369907, 1109721, 7028233, 21084699]

約数ペア:

[(1, 21084699), (3, 7028233), (19, 1109721), (57, 369907), (67, 314697), (201, 104899), (1273, 16563), (3819, 5521)]