21312464

素因数分解:

$2^4\times {\mathrm{569}}^1\times {\mathrm{2341}}^1$

素因数の和:2918

約数の個数: 20

約数和(自身を含む): 41383140

約数和(自身を除く): 20070676

約数列:

[1, 2, 4, 8, 16, 569, 1138, 2276, 2341, 4552, 4682, 9104, 9364, 18728, 37456, 1332029, 2664058, 5328116, 10656232, 21312464]

約数ペア:

[(1, 21312464), (2, 10656232), (4, 5328116), (8, 2664058), (16, 1332029), (569, 37456), (1138, 18728), (2276, 9364), (2341, 9104), (4552, 4682)]