20463988

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{337}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 40884480

約数和(自身を除く): 20420492

約数列:

[1, 2, 4, 17, 19, 34, 38, 47, 68, 76, 94, 188, 323, 337, 646, 674, 799, 893, 1292, 1348, 1598, 1786, 3196, 3572, 5729, 6403, 11458, 12806, 15181, 15839, 22916, 25612, 30362, 31678, 60724, 63356, 108851, 217702, 269263, 300941, 435404, 538526, 601882, 1077052, 1203764, 5115997, 10231994, 20463988]

約数ペア:

[(1, 20463988), (2, 10231994), (4, 5115997), (17, 1203764), (19, 1077052), (34, 601882), (38, 538526), (47, 435404), (68, 300941), (76, 269263), (94, 217702), (188, 108851), (323, 63356), (337, 60724), (646, 31678), (674, 30362), (799, 25612), (893, 22916), (1292, 15839), (1348, 15181), (1598, 12806), (1786, 11458), (3196, 6403), (3572, 5729)]