12131861

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:273

約数の個数: 24

約数和(自身を含む): 15130080

約数和(自身を除く): 2998219

約数列:

[1, 7, 19, 49, 83, 133, 157, 581, 931, 1099, 1577, 2983, 4067, 7693, 11039, 13031, 20881, 77273, 91217, 146167, 247589, 638519, 1733123, 12131861]

約数ペア:

[(1, 12131861), (7, 1733123), (19, 638519), (49, 247589), (83, 146167), (133, 91217), (157, 77273), (581, 20881), (931, 13031), (1099, 11039), (1577, 7693), (2983, 4067)]