20807644

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{3307}}^1$

素因数の和:3346

約数の個数: 36

約数和(自身を含む): 43116472

約数和(自身を除く): 22308828

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 121, 143, 242, 286, 484, 572, 1573, 3146, 3307, 6292, 6614, 13228, 36377, 42991, 72754, 85982, 145508, 171964, 400147, 472901, 800294, 945802, 1600588, 1891604, 5201911, 10403822, 20807644]

約数ペア:

[(1, 20807644), (2, 10403822), (4, 5201911), (11, 1891604), (13, 1600588), (22, 945802), (26, 800294), (44, 472901), (52, 400147), (121, 171964), (143, 145508), (242, 85982), (286, 72754), (484, 42991), (572, 36377), (1573, 13228), (3146, 6614), (3307, 6292)]