21090135

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127819}}^1$

素因数の和:127838

約数の個数: 16

約数和(自身を含む): 36812160

約数和(自身を除く): 15722025

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 127819, 383457, 639095, 1406009, 1917285, 4218027, 7030045, 21090135]

約数ペア:

[(1, 21090135), (3, 7030045), (5, 4218027), (11, 1917285), (15, 1406009), (33, 639095), (55, 383457), (165, 127819)]