20047027

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2861}}^1$

素因数の和:2899

約数の個数: 24

約数和(自身を含む): 27406512

約数和(自身を除く): 7359485

約数列:

[1, 7, 11, 13, 49, 77, 91, 143, 539, 637, 1001, 2861, 7007, 20027, 31471, 37193, 140189, 220297, 260351, 409123, 1542079, 1822457, 2863861, 20047027]

約数ペア:

[(1, 20047027), (7, 2863861), (11, 1822457), (13, 1542079), (49, 409123), (77, 260351), (91, 220297), (143, 140189), (539, 37193), (637, 31471), (1001, 20027), (2861, 7007)]