21333086

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{7907}}^1$

素因数の和:7999

約数の個数: 16

約数和(自身を含む): 34162560

約数和(自身を除く): 12829474

約数列:

[1, 2, 19, 38, 71, 142, 1349, 2698, 7907, 15814, 150233, 300466, 561397, 1122794, 10666543, 21333086]

約数ペア:

[(1, 21333086), (2, 10666543), (19, 1122794), (38, 561397), (71, 300466), (142, 150233), (1349, 15814), (2698, 7907)]