20031568

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{9007}}^1$

素因数の和:9154

約数の個数: 20

約数和(自身を含む): 39094720

約数和(自身を除く): 19063152

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 9007, 18014, 36028, 72056, 144112, 1251973, 2503946, 5007892, 10015784, 20031568]

約数ペア:

[(1, 20031568), (2, 10015784), (4, 5007892), (8, 2503946), (16, 1251973), (139, 144112), (278, 72056), (556, 36028), (1112, 18014), (2224, 9007)]