21077277

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{1531}}^1$

素因数の和:1900

約数の個数: 16

約数和(自身を含む): 30370368

約数和(自身を除く): 9293091

約数列:

[1, 3, 13, 39, 353, 1059, 1531, 4589, 4593, 13767, 19903, 59709, 540443, 1621329, 7025759, 21077277]

約数ペア:

[(1, 21077277), (3, 7025759), (13, 1621329), (39, 540443), (353, 59709), (1059, 19903), (1531, 13767), (4589, 4593)]