21919744

素因数分解:

$2^{11}\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1$

素因数の和:179

約数の個数: 96

約数和(自身を含む): 55036800

約数和(自身を除く): 33117056

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 64, 77, 88, 112, 128, 139, 154, 176, 224, 256, 278, 308, 352, 448, 512, 556, 616, 704, 896, 973, 1024, 1112, 1232, 1408, 1529, 1792, 1946, 2048, 2224, 2464, 2816, 3058, 3584, 3892, 4448, 4928, 5632, 6116, 7168, 7784, 8896, 9856, 10703, 11264, 12232, 14336, 15568, 17792, 19712, 21406, 22528, 24464, 31136, 35584, 39424, 42812, 48928, 62272, 71168, 78848, 85624, 97856, 124544, 142336, 157696, 171248, 195712, 249088, 284672, 342496, 391424, 498176, 684992, 782848, 996352, 1369984, 1565696, 1992704, 2739968, 3131392, 5479936, 10959872, 21919744]

約数ペア:

[(1, 21919744), (2, 10959872), (4, 5479936), (7, 3131392), (8, 2739968), (11, 1992704), (14, 1565696), (16, 1369984), (22, 996352), (28, 782848), (32, 684992), (44, 498176), (56, 391424), (64, 342496), (77, 284672), (88, 249088), (112, 195712), (128, 171248), (139, 157696), (154, 142336), (176, 124544), (224, 97856), (256, 85624), (278, 78848), (308, 71168), (352, 62272), (448, 48928), (512, 42812), (556, 39424), (616, 35584), (704, 31136), (896, 24464), (973, 22528), (1024, 21406), (1112, 19712), (1232, 17792), (1408, 15568), (1529, 14336), (1792, 12232), (1946, 11264), (2048, 10703), (2224, 9856), (2464, 8896), (2816, 7784), (3058, 7168), (3584, 6116), (3892, 5632), (4448, 4928)]