638419834

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{1307}}^1\times {\mathrm{18787}}^1$

素因数の和:20109

約数の個数: 16

約数和(自身を含む): 1032137568

約数和(自身を除く): 393717734

約数列:

[1, 2, 13, 26, 1307, 2614, 16991, 18787, 33982, 37574, 244231, 488462, 24554609, 49109218, 319209917, 638419834]

約数ペア:

[(1, 638419834), (2, 319209917), (13, 49109218), (26, 24554609), (1307, 488462), (2614, 244231), (16991, 37574), (18787, 33982)]