19681805

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{27527}}^1$

素因数の和:27556

約数の個数: 16

約数和(自身を含む): 27748224

約数和(自身を除く): 8066419

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 27527, 137635, 302797, 357851, 1513985, 1789255, 3936361, 19681805]

約数ペア:

[(1, 19681805), (5, 3936361), (11, 1789255), (13, 1513985), (55, 357851), (65, 302797), (143, 137635), (715, 27527)]