21351573

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{41621}}^1$

素因数の和:41649

約数の個数: 16

約数和(自身を含む): 33297600

約数和(自身を除く): 11946027

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 41621, 124863, 374589, 790799, 1123767, 2372397, 7117191, 21351573]

約数ペア:

[(1, 21351573), (3, 7117191), (9, 2372397), (19, 1123767), (27, 790799), (57, 374589), (171, 124863), (513, 41621)]