21021724

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{13441}}^1$

素因数の和:13485

約数の個数: 24

約数和(自身を含む): 40648608

約数和(自身を除く): 19626884

約数列:

[1, 2, 4, 17, 23, 34, 46, 68, 92, 391, 782, 1564, 13441, 26882, 53764, 228497, 309143, 456994, 618286, 913988, 1236572, 5255431, 10510862, 21021724]

約数ペア:

[(1, 21021724), (2, 10510862), (4, 5255431), (17, 1236572), (23, 913988), (34, 618286), (46, 456994), (68, 309143), (92, 228497), (391, 53764), (782, 26882), (1564, 13441)]