21043916

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{169709}}^1$

素因数の和:169744

約数の個数: 12

約数和(自身を含む): 38015040

約数和(自身を除く): 16971124

約数列:

[1, 2, 4, 31, 62, 124, 169709, 339418, 678836, 5260979, 10521958, 21043916]

約数ペア:

[(1, 21043916), (2, 10521958), (4, 5260979), (31, 678836), (62, 339418), (124, 169709)]