1221298

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{439}}^1$

素因数の和:561

約数の個数: 16

約数和(自身を含む): 1995840

約数和(自身を除く): 774542

約数列:

[1, 2, 13, 26, 107, 214, 439, 878, 1391, 2782, 5707, 11414, 46973, 93946, 610649, 1221298]

約数ペア:

[(1, 1221298), (2, 610649), (13, 93946), (26, 46973), (107, 11414), (214, 5707), (439, 2782), (878, 1391)]