21660436

素因数分解:

$2^2\times 7^1\times {\mathrm{223}}^1\times {\mathrm{3469}}^1$

素因数の和:3703

約数の個数: 24

約数和(自身を含む): 43527680

約数和(自身を除く): 21867244

約数列:

[1, 2, 4, 7, 14, 28, 223, 446, 892, 1561, 3122, 3469, 6244, 6938, 13876, 24283, 48566, 97132, 773587, 1547174, 3094348, 5415109, 10830218, 21660436]

約数ペア:

[(1, 21660436), (2, 10830218), (4, 5415109), (7, 3094348), (14, 1547174), (28, 773587), (223, 97132), (446, 48566), (892, 24283), (1561, 13876), (3122, 6938), (3469, 6244)]