20982976

素因数分解:

$2^6\times 7^2\times {\mathrm{6691}}^1$

素因数の和:6717

約数の個数: 42

約数和(自身を含む): 48443388

約数和(自身を除く): 27460412

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 196, 224, 392, 448, 784, 1568, 3136, 6691, 13382, 26764, 46837, 53528, 93674, 107056, 187348, 214112, 327859, 374696, 428224, 655718, 749392, 1311436, 1498784, 2622872, 2997568, 5245744, 10491488, 20982976]

約数ペア:

[(1, 20982976), (2, 10491488), (4, 5245744), (7, 2997568), (8, 2622872), (14, 1498784), (16, 1311436), (28, 749392), (32, 655718), (49, 428224), (56, 374696), (64, 327859), (98, 214112), (112, 187348), (196, 107056), (224, 93674), (392, 53528), (448, 46837), (784, 26764), (1568, 13382), (3136, 6691)]