21294448

素因数分解:

$2^4\times 7^1\times {\mathrm{190129}}^1$

素因数の和:190144

約数の個数: 20

約数和(自身を含む): 47152240

約数和(自身を除く): 25857792

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 190129, 380258, 760516, 1330903, 1521032, 2661806, 3042064, 5323612, 10647224, 21294448]

約数ペア:

[(1, 21294448), (2, 10647224), (4, 5323612), (7, 3042064), (8, 2661806), (14, 1521032), (16, 1330903), (28, 760516), (56, 380258), (112, 190129)]