21165183

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{9521}}^1$

素因数の和:9559

約数の個数: 24

約数和(自身を含む): 34660080

約数和(自身を除く): 13494897

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 9521, 28563, 85689, 123773, 180899, 371319, 542697, 1113957, 1628091, 2351687, 7055061, 21165183]

約数ペア:

[(1, 21165183), (3, 7055061), (9, 2351687), (13, 1628091), (19, 1113957), (39, 542697), (57, 371319), (117, 180899), (171, 123773), (247, 85689), (741, 28563), (2223, 9521)]