19249945

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 28987200

約数和(自身を除く): 9737255

約数列:

[1, 5, 11, 13, 19, 55, 65, 95, 109, 143, 169, 209, 247, 545, 715, 845, 1045, 1199, 1235, 1417, 1859, 2071, 2717, 3211, 5995, 7085, 9295, 10355, 13585, 15587, 16055, 18421, 22781, 26923, 35321, 77935, 92105, 113905, 134615, 176605, 202631, 296153, 349999, 1013155, 1480765, 1749995, 3849989, 19249945]

約数ペア:

[(1, 19249945), (5, 3849989), (11, 1749995), (13, 1480765), (19, 1013155), (55, 349999), (65, 296153), (95, 202631), (109, 176605), (143, 134615), (169, 113905), (209, 92105), (247, 77935), (545, 35321), (715, 26923), (845, 22781), (1045, 18421), (1199, 16055), (1235, 15587), (1417, 13585), (1859, 10355), (2071, 9295), (2717, 7085), (3211, 5995)]