21453507

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{281}}^1\times {\mathrm{499}}^1$

素因数の和:803

約数の個数: 24

約数和(自身を含む): 32994000

約数和(自身を除く): 11540493

約数列:

[1, 3, 9, 17, 51, 153, 281, 499, 843, 1497, 2529, 4491, 4777, 8483, 14331, 25449, 42993, 76347, 140219, 420657, 1261971, 2383723, 7151169, 21453507]

約数ペア:

[(1, 21453507), (3, 7151169), (9, 2383723), (17, 1261971), (51, 420657), (153, 140219), (281, 76347), (499, 42993), (843, 25449), (1497, 14331), (2529, 8483), (4491, 4777)]