1388898091

素因数分解:

$7^2\times {\mathrm{1481}}^1\times {\mathrm{19139}}^1$

素因数の和:20634

約数の個数: 12

約数和(自身を含む): 1616832360

約数和(自身を除く): 227934269

約数列:

[1, 7, 49, 1481, 10367, 19139, 72569, 133973, 937811, 28344859, 198414013, 1388898091]

約数ペア:

[(1, 1388898091), (7, 198414013), (49, 28344859), (1481, 937811), (10367, 133973), (19139, 72569)]