20806528519

素因数分解:

$7^3\times {\mathrm{149}}^1\times {\mathrm{443}}^1\times {\mathrm{919}}^1$

素因数の和:1532

約数の個数: 32

約数和(自身を含む): 24508800000

約数和(自身を除く): 3702271481

約数列:

[1, 7, 49, 149, 343, 443, 919, 1043, 3101, 6433, 7301, 21707, 45031, 51107, 66007, 136931, 151949, 315217, 407117, 462049, 958517, 2849819, 3234343, 6709619, 19948733, 22640401, 46967333, 60660433, 139641131, 424623031, 2972361217, 20806528519]

約数ペア:

[(1, 20806528519), (7, 2972361217), (49, 424623031), (149, 139641131), (343, 60660433), (443, 46967333), (919, 22640401), (1043, 19948733), (3101, 6709619), (6433, 3234343), (7301, 2849819), (21707, 958517), (45031, 462049), (51107, 407117), (66007, 315217), (136931, 151949)]