18845008

素因数分解:

$2^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^2$

素因数の和:121

約数の個数: 90

約数和(自身を含む): 46829034

約数和(自身を除く): 27984026

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 43, 49, 52, 56, 86, 91, 98, 104, 112, 172, 182, 196, 208, 301, 344, 364, 392, 559, 602, 637, 688, 728, 784, 1118, 1204, 1274, 1456, 1849, 2107, 2236, 2408, 2548, 3698, 3913, 4214, 4472, 4816, 5096, 7396, 7826, 8428, 8944, 10192, 12943, 14792, 15652, 16856, 24037, 25886, 27391, 29584, 31304, 33712, 48074, 51772, 54782, 62608, 90601, 96148, 103544, 109564, 168259, 181202, 192296, 207088, 219128, 336518, 362404, 384592, 438256, 673036, 724808, 1177813, 1346072, 1449616, 2355626, 2692144, 4711252, 9422504, 18845008]

約数ペア:

[(1, 18845008), (2, 9422504), (4, 4711252), (7, 2692144), (8, 2355626), (13, 1449616), (14, 1346072), (16, 1177813), (26, 724808), (28, 673036), (43, 438256), (49, 384592), (52, 362404), (56, 336518), (86, 219128), (91, 207088), (98, 192296), (104, 181202), (112, 168259), (172, 109564), (182, 103544), (196, 96148), (208, 90601), (301, 62608), (344, 54782), (364, 51772), (392, 48074), (559, 33712), (602, 31304), (637, 29584), (688, 27391), (728, 25886), (784, 24037), (1118, 16856), (1204, 15652), (1274, 14792), (1456, 12943), (1849, 10192), (2107, 8944), (2236, 8428), (2408, 7826), (2548, 7396), (3698, 5096), (3913, 4816), (4214, 4472)]