21909935

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{2851}}^1$

素因数の和:2938

約数の個数: 16

約数和(自身を含む): 27721440

約数和(自身を除く): 5811505

約数列:

[1, 5, 29, 53, 145, 265, 1537, 2851, 7685, 14255, 82679, 151103, 413395, 755515, 4381987, 21909935]

約数ペア:

[(1, 21909935), (5, 4381987), (29, 755515), (53, 413395), (145, 151103), (265, 82679), (1537, 14255), (2851, 7685)]