20864933

素因数分解:

${\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:173

約数の個数: 24

約数和(自身を含む): 23990208

約数和(自身を除く): 3125275

約数列:

[1, 17, 23, 43, 73, 289, 391, 731, 989, 1241, 1679, 3139, 6647, 12427, 16813, 21097, 28543, 53363, 72197, 285821, 485231, 907171, 1227349, 20864933]

約数ペア:

[(1, 20864933), (17, 1227349), (23, 907171), (43, 485231), (73, 285821), (289, 72197), (391, 53363), (731, 28543), (989, 21097), (1241, 16813), (1679, 12427), (3139, 6647)]