21493128

素因数分解:

$2^3\times 3^1\times {\mathrm{281}}^1\times {\mathrm{3187}}^1$

素因数の和:3477

約数の個数: 32

約数和(自身を含む): 53940960

約数和(自身を除く): 32447832

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 281, 562, 843, 1124, 1686, 2248, 3187, 3372, 6374, 6744, 9561, 12748, 19122, 25496, 38244, 76488, 895547, 1791094, 2686641, 3582188, 5373282, 7164376, 10746564, 21493128]

約数ペア:

[(1, 21493128), (2, 10746564), (3, 7164376), (4, 5373282), (6, 3582188), (8, 2686641), (12, 1791094), (24, 895547), (281, 76488), (562, 38244), (843, 25496), (1124, 19122), (1686, 12748), (2248, 9561), (3187, 6744), (3372, 6374)]