66425281

素因数分解:

${\mathrm{13}}^2\times {\mathrm{31}}^2\times {\mathrm{409}}^1$

素因数の和:497

約数の個数: 18

約数和(自身を含む): 74504790

約数和(自身を除く): 8079509

約数列:

[1, 13, 31, 169, 403, 409, 961, 5239, 5317, 12493, 12679, 69121, 162409, 164827, 393049, 2142751, 5109637, 66425281]

約数ペア:

[(1, 66425281), (13, 5109637), (31, 2142751), (169, 393049), (403, 164827), (409, 162409), (961, 69121), (5239, 12679), (5317, 12493)]