20312149

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{349}}^1$

素因数の和:421

約数の個数: 24

約数和(自身を含む): 24764600

約数和(自身を除く): 4452451

約数列:

[1, 11, 13, 37, 121, 143, 349, 407, 481, 1573, 3839, 4477, 4537, 5291, 12913, 42229, 49907, 58201, 142043, 167869, 548977, 1562473, 1846559, 20312149]

約数ペア:

[(1, 20312149), (11, 1846559), (13, 1562473), (37, 548977), (121, 167869), (143, 142043), (349, 58201), (407, 49907), (481, 42229), (1573, 12913), (3839, 5291), (4477, 4537)]