21000913276

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{17442619}}^1$

素因数の和:17442673

約数の個数: 24

約数和(自身を含む): 42978615680

約数和(自身を除く): 21977702404

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 17442619, 34885238, 69770476, 122098333, 244196666, 488393332, 750032617, 1500065234, 3000130468, 5250228319, 10500456638, 21000913276]

約数ペア:

[(1, 21000913276), (2, 10500456638), (4, 5250228319), (7, 3000130468), (14, 1500065234), (28, 750032617), (43, 488393332), (86, 244196666), (172, 122098333), (301, 69770476), (602, 34885238), (1204, 17442619)]