18885724

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{241}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 39273696

約数和(自身を除く): 20387972

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 137, 143, 241, 274, 286, 482, 548, 572, 964, 1507, 1781, 2651, 3014, 3133, 3562, 5302, 6028, 6266, 7124, 10604, 12532, 19591, 33017, 34463, 39182, 66034, 68926, 78364, 132068, 137852, 363187, 429221, 726374, 858442, 1452748, 1716884, 4721431, 9442862, 18885724]

約数ペア:

[(1, 18885724), (2, 9442862), (4, 4721431), (11, 1716884), (13, 1452748), (22, 858442), (26, 726374), (44, 429221), (52, 363187), (137, 137852), (143, 132068), (241, 78364), (274, 68926), (286, 66034), (482, 39182), (548, 34463), (572, 33017), (964, 19591), (1507, 12532), (1781, 10604), (2651, 7124), (3014, 6266), (3133, 6028), (3562, 5302)]