18887715

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:134

約数の個数: 128

約数和(自身を含む): 44236800

約数和(自身を除く): 25349085

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 23, 27, 33, 35, 45, 55, 63, 69, 77, 79, 99, 105, 115, 135, 161, 165, 189, 207, 231, 237, 253, 297, 315, 345, 385, 395, 483, 495, 553, 621, 693, 711, 759, 805, 869, 945, 1035, 1155, 1185, 1265, 1449, 1485, 1659, 1771, 1817, 2079, 2133, 2277, 2415, 2607, 2765, 3105, 3465, 3555, 3795, 4345, 4347, 4977, 5313, 5451, 6083, 6831, 7245, 7821, 8295, 8855, 9085, 10395, 10665, 11385, 12719, 13035, 14931, 15939, 16353, 18249, 19987, 21735, 23463, 24885, 26565, 27255, 30415, 34155, 38157, 39105, 47817, 49059, 54747, 59961, 63595, 74655, 79695, 81765, 91245, 99935, 114471, 117315, 139909, 164241, 179883, 190785, 239085, 245295, 273735, 299805, 343413, 419727, 539649, 572355, 699545, 821205, 899415, 1259181, 1717065, 2098635, 2698245, 3777543, 6295905, 18887715]

約数ペア:

[(1, 18887715), (3, 6295905), (5, 3777543), (7, 2698245), (9, 2098635), (11, 1717065), (15, 1259181), (21, 899415), (23, 821205), (27, 699545), (33, 572355), (35, 539649), (45, 419727), (55, 343413), (63, 299805), (69, 273735), (77, 245295), (79, 239085), (99, 190785), (105, 179883), (115, 164241), (135, 139909), (161, 117315), (165, 114471), (189, 99935), (207, 91245), (231, 81765), (237, 79695), (253, 74655), (297, 63595), (315, 59961), (345, 54747), (385, 49059), (395, 47817), (483, 39105), (495, 38157), (553, 34155), (621, 30415), (693, 27255), (711, 26565), (759, 24885), (805, 23463), (869, 21735), (945, 19987), (1035, 18249), (1155, 16353), (1185, 15939), (1265, 14931), (1449, 13035), (1485, 12719), (1659, 11385), (1771, 10665), (1817, 10395), (2079, 9085), (2133, 8855), (2277, 8295), (2415, 7821), (2607, 7245), (2765, 6831), (3105, 6083), (3465, 5451), (3555, 5313), (3795, 4977), (4345, 4347)]