19103988

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{2531}}^1$

素因数の和:2592

約数の個数: 48

約数和(自身を含む): 48492864

約数和(自身を除く): 29388876

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 37, 51, 68, 74, 102, 111, 148, 204, 222, 444, 629, 1258, 1887, 2516, 2531, 3774, 5062, 7548, 7593, 10124, 15186, 30372, 43027, 86054, 93647, 129081, 172108, 187294, 258162, 280941, 374588, 516324, 561882, 1123764, 1591999, 3183998, 4775997, 6367996, 9551994, 19103988]

約数ペア:

[(1, 19103988), (2, 9551994), (3, 6367996), (4, 4775997), (6, 3183998), (12, 1591999), (17, 1123764), (34, 561882), (37, 516324), (51, 374588), (68, 280941), (74, 258162), (102, 187294), (111, 172108), (148, 129081), (204, 93647), (222, 86054), (444, 43027), (629, 30372), (1258, 15186), (1887, 10124), (2516, 7593), (2531, 7548), (3774, 5062)]