19902868

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{160507}}^1$

素因数の和:160542

約数の個数: 12

約数和(自身を含む): 35953792

約数和(自身を除く): 16050924

約数列:

[1, 2, 4, 31, 62, 124, 160507, 321014, 642028, 4975717, 9951434, 19902868]

約数ペア:

[(1, 19902868), (2, 9951434), (4, 4975717), (31, 642028), (62, 321014), (124, 160507)]