21071888

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{18041}}^1$

素因数の和:18122

約数の個数: 20

約数和(自身を含む): 41388348

約数和(自身を除く): 20316460

約数列:

[1, 2, 4, 8, 16, 73, 146, 292, 584, 1168, 18041, 36082, 72164, 144328, 288656, 1316993, 2633986, 5267972, 10535944, 21071888]

約数ペア:

[(1, 21071888), (2, 10535944), (4, 5267972), (8, 2633986), (16, 1316993), (73, 288656), (146, 144328), (292, 72164), (584, 36082), (1168, 18041)]