19984536

素因数分解:

$2^3\times 3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{647}}^1$

素因数の和:686

約数の個数: 128

約数和(自身を含む): 65318400

約数和(自身を除く): 45333864

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 13, 18, 22, 24, 26, 27, 33, 36, 39, 44, 52, 54, 66, 72, 78, 88, 99, 104, 108, 117, 132, 143, 156, 198, 216, 234, 264, 286, 297, 312, 351, 396, 429, 468, 572, 594, 647, 702, 792, 858, 936, 1144, 1188, 1287, 1294, 1404, 1716, 1941, 2376, 2574, 2588, 2808, 3432, 3861, 3882, 5148, 5176, 5823, 7117, 7722, 7764, 8411, 10296, 11646, 14234, 15444, 15528, 16822, 17469, 21351, 23292, 25233, 28468, 30888, 33644, 34938, 42702, 46584, 50466, 56936, 64053, 67288, 69876, 75699, 85404, 92521, 100932, 128106, 139752, 151398, 170808, 185042, 192159, 201864, 227097, 256212, 277563, 302796, 370084, 384318, 454194, 512424, 555126, 605592, 740168, 768636, 832689, 908388, 1110252, 1537272, 1665378, 1816776, 2220504, 2498067, 3330756, 4996134, 6661512, 9992268, 19984536]

約数ペア:

[(1, 19984536), (2, 9992268), (3, 6661512), (4, 4996134), (6, 3330756), (8, 2498067), (9, 2220504), (11, 1816776), (12, 1665378), (13, 1537272), (18, 1110252), (22, 908388), (24, 832689), (26, 768636), (27, 740168), (33, 605592), (36, 555126), (39, 512424), (44, 454194), (52, 384318), (54, 370084), (66, 302796), (72, 277563), (78, 256212), (88, 227097), (99, 201864), (104, 192159), (108, 185042), (117, 170808), (132, 151398), (143, 139752), (156, 128106), (198, 100932), (216, 92521), (234, 85404), (264, 75699), (286, 69876), (297, 67288), (312, 64053), (351, 56936), (396, 50466), (429, 46584), (468, 42702), (572, 34938), (594, 33644), (647, 30888), (702, 28468), (792, 25233), (858, 23292), (936, 21351), (1144, 17469), (1188, 16822), (1287, 15528), (1294, 15444), (1404, 14234), (1716, 11646), (1941, 10296), (2376, 8411), (2574, 7764), (2588, 7722), (2808, 7117), (3432, 5823), (3861, 5176), (3882, 5148)]