21077127

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{347}}^1\times {\mathrm{397}}^1$

素因数の和:767

約数の個数: 24

約数和(自身を含む): 32409936

約数和(自身を除く): 11332809

約数列:

[1, 3, 9, 17, 51, 153, 347, 397, 1041, 1191, 3123, 3573, 5899, 6749, 17697, 20247, 53091, 60741, 137759, 413277, 1239831, 2341903, 7025709, 21077127]

約数ペア:

[(1, 21077127), (3, 7025709), (9, 2341903), (17, 1239831), (51, 413277), (153, 137759), (347, 60741), (397, 53091), (1041, 20247), (1191, 17697), (3123, 6749), (3573, 5899)]