19492858

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{311}}^1$

素因数の和:379

約数の個数: 48

約数和(自身を含む): 37844352

約数和(自身を除く): 18351494

約数列:

[1, 2, 7, 11, 14, 22, 37, 74, 77, 121, 154, 242, 259, 311, 407, 518, 622, 814, 847, 1694, 2177, 2849, 3421, 4354, 4477, 5698, 6842, 8954, 11507, 23014, 23947, 31339, 37631, 47894, 62678, 75262, 80549, 126577, 161098, 253154, 263417, 526834, 886039, 1392347, 1772078, 2784694, 9746429, 19492858]

約数ペア:

[(1, 19492858), (2, 9746429), (7, 2784694), (11, 1772078), (14, 1392347), (22, 886039), (37, 526834), (74, 263417), (77, 253154), (121, 161098), (154, 126577), (242, 80549), (259, 75262), (311, 62678), (407, 47894), (518, 37631), (622, 31339), (814, 23947), (847, 23014), (1694, 11507), (2177, 8954), (2849, 6842), (3421, 5698), (4354, 4477)]