21347648

素因数分解:

$2^6\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2803}}^1$

素因数の和:2839

約数の個数: 56

約数和(自身を含む): 51279552

約数和(自身を除く): 29931904

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 64, 68, 112, 119, 136, 224, 238, 272, 448, 476, 544, 952, 1088, 1904, 2803, 3808, 5606, 7616, 11212, 19621, 22424, 39242, 44848, 47651, 78484, 89696, 95302, 156968, 179392, 190604, 313936, 333557, 381208, 627872, 667114, 762416, 1255744, 1334228, 1524832, 2668456, 3049664, 5336912, 10673824, 21347648]

約数ペア:

[(1, 21347648), (2, 10673824), (4, 5336912), (7, 3049664), (8, 2668456), (14, 1524832), (16, 1334228), (17, 1255744), (28, 762416), (32, 667114), (34, 627872), (56, 381208), (64, 333557), (68, 313936), (112, 190604), (119, 179392), (136, 156968), (224, 95302), (238, 89696), (272, 78484), (448, 47651), (476, 44848), (544, 39242), (952, 22424), (1088, 19621), (1904, 11212), (2803, 7616), (3808, 5606)]