18869851

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2693}}^1$

素因数の和:2731

約数の個数: 24

約数和(自身を含む): 25797744

約数和(自身を除く): 6927893

約数列:

[1, 7, 11, 13, 49, 77, 91, 143, 539, 637, 1001, 2693, 7007, 18851, 29623, 35009, 131957, 207361, 245063, 385099, 1451527, 1715441, 2695693, 18869851]

約数ペア:

[(1, 18869851), (7, 2695693), (11, 1715441), (13, 1451527), (49, 385099), (77, 245063), (91, 207361), (143, 131957), (539, 35009), (637, 29623), (1001, 18851), (2693, 7007)]