2193989

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:284

約数の個数: 16

約数和(自身を含む): 2648448

約数和(自身を除く): 454459

約数列:

[1, 7, 37, 43, 197, 259, 301, 1379, 1591, 7289, 8471, 11137, 51023, 59297, 313427, 2193989]

約数ペア:

[(1, 2193989), (7, 313427), (37, 59297), (43, 51023), (197, 11137), (259, 8471), (301, 7289), (1379, 1591)]