1998131009

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{1087}}^1$

素因数の和:1365

約数の個数: 32

約数和(自身を含む): 2426535936

約数和(自身を除く): 428404927

約数列:

[1, 7, 31, 43, 197, 217, 301, 1087, 1333, 1379, 6107, 7609, 8471, 9331, 33697, 42749, 46741, 59297, 214139, 235879, 262601, 327187, 1448971, 1498973, 1838207, 6638309, 9207977, 10142797, 46468163, 64455839, 285447287, 1998131009]

約数ペア:

[(1, 1998131009), (7, 285447287), (31, 64455839), (43, 46468163), (197, 10142797), (217, 9207977), (301, 6638309), (1087, 1838207), (1333, 1498973), (1379, 1448971), (6107, 327187), (7609, 262601), (8471, 235879), (9331, 214139), (33697, 59297), (42749, 46741)]