19607984

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{111409}}^1$

素因数の和:111428

約数の個数: 20

約数和(自身を含む): 41444520

約数和(自身を除く): 21836536

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 111409, 222818, 445636, 891272, 1225499, 1782544, 2450998, 4901996, 9803992, 19607984]

約数ペア:

[(1, 19607984), (2, 9803992), (4, 4901996), (8, 2450998), (11, 1782544), (16, 1225499), (22, 891272), (44, 445636), (88, 222818), (176, 111409)]