21023271

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{313}}^1\times {\mathrm{439}}^1$

素因数の和:775

約数の個数: 24

約数和(自身を含む): 32329440

約数和(自身を除く): 11306169

約数列:

[1, 3, 9, 17, 51, 153, 313, 439, 939, 1317, 2817, 3951, 5321, 7463, 15963, 22389, 47889, 67167, 137407, 412221, 1236663, 2335919, 7007757, 21023271]

約数ペア:

[(1, 21023271), (3, 7007757), (9, 2335919), (17, 1236663), (51, 412221), (153, 137407), (313, 67167), (439, 47889), (939, 22389), (1317, 15963), (2817, 7463), (3951, 5321)]