19871516

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{19181}}^1$

素因数の和:19229

約数の個数: 24

約数和(自身を含む): 40819296

約数和(自身を除く): 20947780

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 19181, 38362, 76724, 134267, 268534, 537068, 709697, 1419394, 2838788, 4967879, 9935758, 19871516]

約数ペア:

[(1, 19871516), (2, 9935758), (4, 4967879), (7, 2838788), (14, 1419394), (28, 709697), (37, 537068), (74, 268534), (148, 134267), (259, 76724), (518, 38362), (1036, 19181)]