19892257

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{6301}}^1$

素因数の和:6360

約数の個数: 16

約数和(自身を含む): 25409664

約数和(自身を除く): 5517407

約数列:

[1, 7, 11, 41, 77, 287, 451, 3157, 6301, 44107, 69311, 258341, 485177, 1808387, 2841751, 19892257]

約数ペア:

[(1, 19892257), (7, 2841751), (11, 1808387), (41, 485177), (77, 258341), (287, 69311), (451, 44107), (3157, 6301)]