21979748

素因数分解:

$2^2\times 7^1\times {\mathrm{541}}^1\times {\mathrm{1451}}^1$

素因数の和:2003

約数の個数: 24

約数和(自身を含む): 44071104

約数和(自身を除く): 22091356

約数列:

[1, 2, 4, 7, 14, 28, 541, 1082, 1451, 2164, 2902, 3787, 5804, 7574, 10157, 15148, 20314, 40628, 784991, 1569982, 3139964, 5494937, 10989874, 21979748]

約数ペア:

[(1, 21979748), (2, 10989874), (4, 5494937), (7, 3139964), (14, 1569982), (28, 784991), (541, 40628), (1082, 20314), (1451, 15148), (2164, 10157), (2902, 7574), (3787, 5804)]