20789548

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{541}}^1\times {\mathrm{739}}^1$

素因数の和:1297

約数の個数: 24

約数和(自身を含む): 39305840

約数和(自身を除く): 18516292

約数列:

[1, 2, 4, 13, 26, 52, 541, 739, 1082, 1478, 2164, 2956, 7033, 9607, 14066, 19214, 28132, 38428, 399799, 799598, 1599196, 5197387, 10394774, 20789548]

約数ペア:

[(1, 20789548), (2, 10394774), (4, 5197387), (13, 1599196), (26, 799598), (52, 399799), (541, 38428), (739, 28132), (1082, 19214), (1478, 14066), (2164, 9607), (2956, 7033)]