21513586

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{4073}}^1$

素因数の和:4233

約数の個数: 16

約数和(自身を含む): 34221600

約数和(自身を除く): 12708014

約数列:

[1, 2, 19, 38, 139, 278, 2641, 4073, 5282, 8146, 77387, 154774, 566147, 1132294, 10756793, 21513586]

約数ペア:

[(1, 21513586), (2, 10756793), (19, 1132294), (38, 566147), (139, 154774), (278, 77387), (2641, 8146), (4073, 5282)]