21453376

素因数分解:

$2^6\times 7^2\times {\mathrm{6841}}^1$

素因数の和:6867

約数の個数: 42

約数和(自身を含む): 49529238

約数和(自身を除く): 28075862

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 196, 224, 392, 448, 784, 1568, 3136, 6841, 13682, 27364, 47887, 54728, 95774, 109456, 191548, 218912, 335209, 383096, 437824, 670418, 766192, 1340836, 1532384, 2681672, 3064768, 5363344, 10726688, 21453376]

約数ペア:

[(1, 21453376), (2, 10726688), (4, 5363344), (7, 3064768), (8, 2681672), (14, 1532384), (16, 1340836), (28, 766192), (32, 670418), (49, 437824), (56, 383096), (64, 335209), (98, 218912), (112, 191548), (196, 109456), (224, 95774), (392, 54728), (448, 47887), (784, 27364), (1568, 13682), (3136, 6841)]