20581136

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{55927}}^1$

素因数の和:55958

約数の個数: 20

約数和(自身を含む): 41610432

約数和(自身を除く): 21029296

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 55927, 111854, 223708, 447416, 894832, 1286321, 2572642, 5145284, 10290568, 20581136]

約数ペア:

[(1, 20581136), (2, 10290568), (4, 5145284), (8, 2572642), (16, 1286321), (23, 894832), (46, 447416), (92, 223708), (184, 111854), (368, 55927)]