19947436

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{45751}}^1$

素因数の和:45864

約数の個数: 12

約数和(自身を含む): 35229040

約数和(自身を除く): 15281604

約数列:

[1, 2, 4, 109, 218, 436, 45751, 91502, 183004, 4986859, 9973718, 19947436]

約数ペア:

[(1, 19947436), (2, 9973718), (4, 4986859), (109, 183004), (218, 91502), (436, 45751)]