19780462

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{1733}}^1$

素因数の和:2187

約数の個数: 16

約数和(自身を含む): 32044320

約数和(自身を除く): 12263858

約数列:

[1, 2, 13, 26, 439, 878, 1733, 3466, 5707, 11414, 22529, 45058, 760787, 1521574, 9890231, 19780462]

約数ペア:

[(1, 19780462), (2, 9890231), (13, 1521574), (26, 760787), (439, 45058), (878, 22529), (1733, 11414), (3466, 5707)]