20783444

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{1867}}^1$

素因数の和:1916

約数の個数: 36

約数和(自身を含む): 41738592

約数和(自身を除く): 20955148

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 121, 242, 253, 484, 506, 1012, 1867, 2783, 3734, 5566, 7468, 11132, 20537, 41074, 42941, 82148, 85882, 171764, 225907, 451814, 472351, 903628, 944702, 1889404, 5195861, 10391722, 20783444]

約数ペア:

[(1, 20783444), (2, 10391722), (4, 5195861), (11, 1889404), (22, 944702), (23, 903628), (44, 472351), (46, 451814), (92, 225907), (121, 171764), (242, 85882), (253, 82148), (484, 42941), (506, 41074), (1012, 20537), (1867, 11132), (2783, 7468), (3734, 5566)]