18815258

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{383}}^1$

素因数の和:443

約数の個数: 48

約数和(自身を含む): 36771840

約数和(自身を除く): 17956582

約数列:

[1, 2, 7, 11, 14, 22, 29, 58, 77, 121, 154, 203, 242, 319, 383, 406, 638, 766, 847, 1694, 2233, 2681, 3509, 4213, 4466, 5362, 7018, 8426, 11107, 22214, 24563, 29491, 46343, 49126, 58982, 77749, 92686, 122177, 155498, 244354, 324401, 648802, 855239, 1343947, 1710478, 2687894, 9407629, 18815258]

約数ペア:

[(1, 18815258), (2, 9407629), (7, 2687894), (11, 1710478), (14, 1343947), (22, 855239), (29, 648802), (58, 324401), (77, 244354), (121, 155498), (154, 122177), (203, 92686), (242, 77749), (319, 58982), (383, 49126), (406, 46343), (638, 29491), (766, 24563), (847, 22214), (1694, 11107), (2233, 8426), (2681, 7018), (3509, 5362), (4213, 4466)]