16180821

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{6221}}^1$

素因数の和:6261

約数の個数: 18

約数和(自身を含む): 24832002

約数和(自身を除く): 8651181

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 6221, 18663, 55989, 105757, 317271, 951813, 1797869, 5393607, 16180821]

約数ペア:

[(1, 16180821), (3, 5393607), (9, 1797869), (17, 951813), (51, 317271), (153, 105757), (289, 55989), (867, 18663), (2601, 6221)]