2221569

素因数分解:

$3^2\times 7^1\times {\mathrm{179}}^1\times {\mathrm{197}}^1$

素因数の和:389

約数の個数: 24

約数和(自身を含む): 3706560

約数和(自身を除く): 1484991

約数列:

[1, 3, 7, 9, 21, 63, 179, 197, 537, 591, 1253, 1379, 1611, 1773, 3759, 4137, 11277, 12411, 35263, 105789, 246841, 317367, 740523, 2221569]

約数ペア:

[(1, 2221569), (3, 740523), (7, 317367), (9, 246841), (21, 105789), (63, 35263), (179, 12411), (197, 11277), (537, 4137), (591, 3759), (1253, 1773), (1379, 1611)]