21139832

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{8779}}^1$

素因数の和:8835

約数の個数: 32

約数和(自身を含む): 46358400

約数和(自身を除く): 25218568

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 301, 344, 602, 1204, 2408, 8779, 17558, 35116, 61453, 70232, 122906, 245812, 377497, 491624, 754994, 1509988, 2642479, 3019976, 5284958, 10569916, 21139832]

約数ペア:

[(1, 21139832), (2, 10569916), (4, 5284958), (7, 3019976), (8, 2642479), (14, 1509988), (28, 754994), (43, 491624), (56, 377497), (86, 245812), (172, 122906), (301, 70232), (344, 61453), (602, 35116), (1204, 17558), (2408, 8779)]