21288542

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{26153}}^1$

素因数の和:26203

約数の個数: 16

約数和(自身を含む): 35778672

約数和(自身を除く): 14490130

約数列:

[1, 2, 11, 22, 37, 74, 407, 814, 26153, 52306, 287683, 575366, 967661, 1935322, 10644271, 21288542]

約数ペア:

[(1, 21288542), (2, 10644271), (11, 1935322), (22, 967661), (37, 575366), (74, 287683), (407, 52306), (814, 26153)]