20784665

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{3467}}^1$

素因数の和:3592

約数の個数: 16

約数和(自身を含む): 27466560

約数和(自身を除く): 6681895

約数列:

[1, 5, 11, 55, 109, 545, 1199, 3467, 5995, 17335, 38137, 190685, 377903, 1889515, 4156933, 20784665]

約数ペア:

[(1, 20784665), (5, 4156933), (11, 1889515), (55, 377903), (109, 190685), (545, 38137), (1199, 17335), (3467, 5995)]