19851444

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{199}}^1$

素因数の和:389

約数の個数: 72

約数和(自身を含む): 53726400

約数和(自身を除く): 33874956

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 102, 153, 163, 199, 204, 306, 326, 398, 489, 597, 612, 652, 796, 978, 1194, 1467, 1791, 1956, 2388, 2771, 2934, 3383, 3582, 5542, 5868, 6766, 7164, 8313, 10149, 11084, 13532, 16626, 20298, 24939, 30447, 32437, 33252, 40596, 49878, 60894, 64874, 97311, 99756, 121788, 129748, 194622, 291933, 389244, 551429, 583866, 1102858, 1167732, 1654287, 2205716, 3308574, 4962861, 6617148, 9925722, 19851444]

約数ペア:

[(1, 19851444), (2, 9925722), (3, 6617148), (4, 4962861), (6, 3308574), (9, 2205716), (12, 1654287), (17, 1167732), (18, 1102858), (34, 583866), (36, 551429), (51, 389244), (68, 291933), (102, 194622), (153, 129748), (163, 121788), (199, 99756), (204, 97311), (306, 64874), (326, 60894), (398, 49878), (489, 40596), (597, 33252), (612, 32437), (652, 30447), (796, 24939), (978, 20298), (1194, 16626), (1467, 13532), (1791, 11084), (1956, 10149), (2388, 8313), (2771, 7164), (2934, 6766), (3383, 5868), (3582, 5542)]