20559884

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{1123}}^1$

素因数の和:1349

約数の個数: 24

約数和(自身を含む): 37766400

約数和(自身を除く): 17206516

約数列:

[1, 2, 4, 23, 46, 92, 199, 398, 796, 1123, 2246, 4492, 4577, 9154, 18308, 25829, 51658, 103316, 223477, 446954, 893908, 5139971, 10279942, 20559884]

約数ペア:

[(1, 20559884), (2, 10279942), (4, 5139971), (23, 893908), (46, 446954), (92, 223477), (199, 103316), (398, 51658), (796, 25829), (1123, 18308), (2246, 9154), (4492, 4577)]