21040432

素因数分解:

$2^4\times 7^1\times {\mathrm{187861}}^1$

素因数の和:187876

約数の個数: 20

約数和(自身を含む): 46589776

約数和(自身を除く): 25549344

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 187861, 375722, 751444, 1315027, 1502888, 2630054, 3005776, 5260108, 10520216, 21040432]

約数ペア:

[(1, 21040432), (2, 10520216), (4, 5260108), (7, 3005776), (8, 2630054), (14, 1502888), (16, 1315027), (28, 751444), (56, 375722), (112, 187861)]