81403974

素因数分解:

$2^1\times 3^3\times {\mathrm{1507481}}^1$

素因数の和:1507492

約数の個数: 16

約数和(自身を含む): 180897840

約数和(自身を除く): 99493866

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 1507481, 3014962, 4522443, 9044886, 13567329, 27134658, 40701987, 81403974]

約数ペア:

[(1, 81403974), (2, 40701987), (3, 27134658), (6, 13567329), (9, 9044886), (18, 4522443), (27, 3014962), (54, 1507481)]