217620819

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{1860007}}^1$

素因数の和:1860026

約数の個数: 12

約数和(自身を含む): 338521456

約数和(自身を除く): 120900637

約数列:

[1, 3, 9, 13, 39, 117, 1860007, 5580021, 16740063, 24180091, 72540273, 217620819]

約数ペア:

[(1, 217620819), (3, 72540273), (9, 24180091), (13, 16740063), (39, 5580021), (117, 1860007)]