21642687

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{72871}}^1$

素因数の和:72891

約数の個数: 16

約数和(自身を含む): 34978560

約数和(自身を除く): 13335873

約数列:

[1, 3, 9, 11, 27, 33, 99, 297, 72871, 218613, 655839, 801581, 1967517, 2404743, 7214229, 21642687]

約数ペア:

[(1, 21642687), (3, 7214229), (9, 2404743), (11, 1967517), (27, 801581), (33, 655839), (99, 218613), (297, 72871)]