20974884

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{5807}}^1$

素因数の和:5864

約数の個数: 48

約数和(自身を含む): 57243648

約数和(自身を除く): 36268764

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 43, 84, 86, 129, 172, 258, 301, 516, 602, 903, 1204, 1806, 3612, 5807, 11614, 17421, 23228, 34842, 40649, 69684, 81298, 121947, 162596, 243894, 249701, 487788, 499402, 749103, 998804, 1498206, 1747907, 2996412, 3495814, 5243721, 6991628, 10487442, 20974884]

約数ペア:

[(1, 20974884), (2, 10487442), (3, 6991628), (4, 5243721), (6, 3495814), (7, 2996412), (12, 1747907), (14, 1498206), (21, 998804), (28, 749103), (42, 499402), (43, 487788), (84, 249701), (86, 243894), (129, 162596), (172, 121947), (258, 81298), (301, 69684), (516, 40649), (602, 34842), (903, 23228), (1204, 17421), (1806, 11614), (3612, 5807)]