21208768

素因数分解:

$2^6\times 7^2\times {\mathrm{6763}}^1$

素因数の和:6789

約数の個数: 42

約数和(自身を含む): 48964596

約数和(自身を除く): 27755828

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 196, 224, 392, 448, 784, 1568, 3136, 6763, 13526, 27052, 47341, 54104, 94682, 108208, 189364, 216416, 331387, 378728, 432832, 662774, 757456, 1325548, 1514912, 2651096, 3029824, 5302192, 10604384, 21208768]

約数ペア:

[(1, 21208768), (2, 10604384), (4, 5302192), (7, 3029824), (8, 2651096), (14, 1514912), (16, 1325548), (28, 757456), (32, 662774), (49, 432832), (56, 378728), (64, 331387), (98, 216416), (112, 189364), (196, 108208), (224, 94682), (392, 54104), (448, 47341), (784, 27052), (1568, 13526), (3136, 6763)]