21809589

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{18593}}^1$

素因数の和:18636

約数の個数: 16

約数和(自身を含む): 32130432

約数和(自身を除く): 10320843

約数列:

[1, 3, 17, 23, 51, 69, 391, 1173, 18593, 55779, 316081, 427639, 948243, 1282917, 7269863, 21809589]

約数ペア:

[(1, 21809589), (3, 7269863), (17, 1282917), (23, 948243), (51, 427639), (69, 316081), (391, 55779), (1173, 18593)]