21775311

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{14149}}^1$

素因数の和:14180

約数の個数: 20

約数和(自身を含む): 34243000

約数和(自身を除く): 12467689

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 14149, 42447, 127341, 268831, 382023, 806493, 1146069, 2419479, 7258437, 21775311]

約数ペア:

[(1, 21775311), (3, 7258437), (9, 2419479), (19, 1146069), (27, 806493), (57, 382023), (81, 268831), (171, 127341), (513, 42447), (1539, 14149)]