21643312

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{1693}}^1$

素因数の和:1765

約数の個数: 40

約数和(自身を含む): 45372096

約数和(自身を除く): 23728784

約数列:

[1, 2, 4, 8, 16, 17, 34, 47, 68, 94, 136, 188, 272, 376, 752, 799, 1598, 1693, 3196, 3386, 6392, 6772, 12784, 13544, 27088, 28781, 57562, 79571, 115124, 159142, 230248, 318284, 460496, 636568, 1273136, 1352707, 2705414, 5410828, 10821656, 21643312]

約数ペア:

[(1, 21643312), (2, 10821656), (4, 5410828), (8, 2705414), (16, 1352707), (17, 1273136), (34, 636568), (47, 460496), (68, 318284), (94, 230248), (136, 159142), (188, 115124), (272, 79571), (376, 57562), (752, 28781), (799, 27088), (1598, 13544), (1693, 12784), (3196, 6772), (3386, 6392)]