19734668

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{45263}}^1$

素因数の和:45376

約数の個数: 12

約数和(自身を含む): 34853280

約数和(自身を除く): 15118612

約数列:

[1, 2, 4, 109, 218, 436, 45263, 90526, 181052, 4933667, 9867334, 19734668]

約数ペア:

[(1, 19734668), (2, 9867334), (4, 4933667), (109, 181052), (218, 90526), (436, 45263)]