20658176

素因数分解:

$2^{11}\times 7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1$

素因数の和:171

約数の個数: 96

約数和(自身を含む): 51891840

約数和(自身を除く): 31233664

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 64, 77, 88, 112, 128, 131, 154, 176, 224, 256, 262, 308, 352, 448, 512, 524, 616, 704, 896, 917, 1024, 1048, 1232, 1408, 1441, 1792, 1834, 2048, 2096, 2464, 2816, 2882, 3584, 3668, 4192, 4928, 5632, 5764, 7168, 7336, 8384, 9856, 10087, 11264, 11528, 14336, 14672, 16768, 19712, 20174, 22528, 23056, 29344, 33536, 39424, 40348, 46112, 58688, 67072, 78848, 80696, 92224, 117376, 134144, 157696, 161392, 184448, 234752, 268288, 322784, 368896, 469504, 645568, 737792, 939008, 1291136, 1475584, 1878016, 2582272, 2951168, 5164544, 10329088, 20658176]

約数ペア:

[(1, 20658176), (2, 10329088), (4, 5164544), (7, 2951168), (8, 2582272), (11, 1878016), (14, 1475584), (16, 1291136), (22, 939008), (28, 737792), (32, 645568), (44, 469504), (56, 368896), (64, 322784), (77, 268288), (88, 234752), (112, 184448), (128, 161392), (131, 157696), (154, 134144), (176, 117376), (224, 92224), (256, 80696), (262, 78848), (308, 67072), (352, 58688), (448, 46112), (512, 40348), (524, 39424), (616, 33536), (704, 29344), (896, 23056), (917, 22528), (1024, 20174), (1048, 19712), (1232, 16768), (1408, 14672), (1441, 14336), (1792, 11528), (1834, 11264), (2048, 10087), (2096, 9856), (2464, 8384), (2816, 7336), (2882, 7168), (3584, 5764), (3668, 5632), (4192, 4928)]