21122456

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{24223}}^1$

素因数の和:24338

約数の個数: 16

約数和(自身を含む): 39969600

約数和(自身を除く): 18847144

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 24223, 48446, 96892, 193784, 2640307, 5280614, 10561228, 21122456]

約数ペア:

[(1, 21122456), (2, 10561228), (4, 5280614), (8, 2640307), (109, 193784), (218, 96892), (436, 48446), (872, 24223)]