21253456

素因数分解:

$2^4\times 7^2\times {\mathrm{27109}}^1$

素因数の和:27131

約数の個数: 30

約数和(自身を含む): 47903370

約数和(自身を除く): 26649914

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784, 27109, 54218, 108436, 189763, 216872, 379526, 433744, 759052, 1328341, 1518104, 2656682, 3036208, 5313364, 10626728, 21253456]

約数ペア:

[(1, 21253456), (2, 10626728), (4, 5313364), (7, 3036208), (8, 2656682), (14, 1518104), (16, 1328341), (28, 759052), (49, 433744), (56, 379526), (98, 216872), (112, 189763), (196, 108436), (392, 54218), (784, 27109)]