19453148

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{479}}^1$

素因数の和:578

約数の個数: 48

約数和(自身を含む): 40642560

約数和(自身を除く): 21189412

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 71, 142, 143, 284, 286, 479, 572, 781, 923, 958, 1562, 1846, 1916, 3124, 3692, 5269, 6227, 10153, 10538, 12454, 20306, 21076, 24908, 34009, 40612, 68018, 68497, 136036, 136994, 273988, 374099, 442117, 748198, 884234, 1496396, 1768468, 4863287, 9726574, 19453148]

約数ペア:

[(1, 19453148), (2, 9726574), (4, 4863287), (11, 1768468), (13, 1496396), (22, 884234), (26, 748198), (44, 442117), (52, 374099), (71, 273988), (142, 136994), (143, 136036), (284, 68497), (286, 68018), (479, 40612), (572, 34009), (781, 24908), (923, 21076), (958, 20306), (1562, 12454), (1846, 10538), (1916, 10153), (3124, 6227), (3692, 5269)]