1261217709

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{915917}}^1$

素因数の和:915946

約数の個数: 20

約数和(自身を含む): 1994869404

約数和(自身を除く): 733651695

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 915917, 2747751, 8243253, 15570589, 24729759, 46711767, 74189277, 140135301, 420405903, 1261217709]

約数ペア:

[(1, 1261217709), (3, 420405903), (9, 140135301), (17, 74189277), (27, 46711767), (51, 24729759), (81, 15570589), (153, 8243253), (459, 2747751), (1377, 915917)]