21124208

素因数分解:

$2^4\times 7^1\times {\mathrm{188609}}^1$

素因数の和:188624

約数の個数: 20

約数和(自身を含む): 46775280

約数和(自身を除く): 25651072

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 188609, 377218, 754436, 1320263, 1508872, 2640526, 3017744, 5281052, 10562104, 21124208]

約数ペア:

[(1, 21124208), (2, 10562104), (4, 5281052), (7, 3017744), (8, 2640526), (14, 1508872), (16, 1320263), (28, 754436), (56, 377218), (112, 188609)]