20806545

素因数分解:

$3^1\times 5^1\times {\mathrm{739}}^1\times {\mathrm{1877}}^1$

素因数の和:2624

約数の個数: 16

約数和(自身を含む): 33353280

約数和(自身を除く): 12546735

約数列:

[1, 3, 5, 15, 739, 1877, 2217, 3695, 5631, 9385, 11085, 28155, 1387103, 4161309, 6935515, 20806545]

約数ペア:

[(1, 20806545), (3, 6935515), (5, 4161309), (15, 1387103), (739, 28155), (1877, 11085), (2217, 9385), (3695, 5631)]