87864417

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{7237}}^1$

素因数の和:7333

約数の個数: 24

約数和(自身を含む): 135495360

約数和(自身を除く): 47630943

約数列:

[1, 3, 9, 19, 57, 71, 171, 213, 639, 1349, 4047, 7237, 12141, 21711, 65133, 137503, 412509, 513827, 1237527, 1541481, 4624443, 9762713, 29288139, 87864417]

約数ペア:

[(1, 87864417), (3, 29288139), (9, 9762713), (19, 4624443), (57, 1541481), (71, 1237527), (171, 513827), (213, 412509), (639, 137503), (1349, 65133), (4047, 21711), (7237, 12141)]