19703288

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 42577920

約数和(自身を除く): 22874632

約数列:

[1, 2, 4, 8, 11, 22, 41, 43, 44, 82, 86, 88, 127, 164, 172, 254, 328, 344, 451, 473, 508, 902, 946, 1016, 1397, 1763, 1804, 1892, 2794, 3526, 3608, 3784, 5207, 5461, 5588, 7052, 10414, 10922, 11176, 14104, 19393, 20828, 21844, 38786, 41656, 43688, 57277, 60071, 77572, 114554, 120142, 155144, 223901, 229108, 240284, 447802, 458216, 480568, 895604, 1791208, 2462911, 4925822, 9851644, 19703288]

約数ペア:

[(1, 19703288), (2, 9851644), (4, 4925822), (8, 2462911), (11, 1791208), (22, 895604), (41, 480568), (43, 458216), (44, 447802), (82, 240284), (86, 229108), (88, 223901), (127, 155144), (164, 120142), (172, 114554), (254, 77572), (328, 60071), (344, 57277), (451, 43688), (473, 41656), (508, 38786), (902, 21844), (946, 20828), (1016, 19393), (1397, 14104), (1763, 11176), (1804, 10922), (1892, 10414), (2794, 7052), (3526, 5588), (3608, 5461), (3784, 5207)]