19903888

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{17041}}^1$

素因数の和:17122

約数の個数: 20

約数和(自身を含む): 39094348

約数和(自身を除く): 19190460

約数列:

[1, 2, 4, 8, 16, 73, 146, 292, 584, 1168, 17041, 34082, 68164, 136328, 272656, 1243993, 2487986, 4975972, 9951944, 19903888]

約数ペア:

[(1, 19903888), (2, 9951944), (4, 4975972), (8, 2487986), (16, 1243993), (73, 272656), (146, 136328), (292, 68164), (584, 34082), (1168, 17041)]