19947056

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{8969}}^1$

素因数の和:9116

約数の個数: 20

約数和(自身を含む): 38929800

約数和(自身を除く): 18982744

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 8969, 17938, 35876, 71752, 143504, 1246691, 2493382, 4986764, 9973528, 19947056]

約数ペア:

[(1, 19947056), (2, 9973528), (4, 4986764), (8, 2493382), (16, 1246691), (139, 143504), (278, 71752), (556, 35876), (1112, 17938), (2224, 8969)]