20128042

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{21277}}^1$

素因数の和:21333

約数の個数: 16

約数和(自身を含む): 33704352

約数和(自身を除く): 13576310

約数列:

[1, 2, 11, 22, 43, 86, 473, 946, 21277, 42554, 234047, 468094, 914911, 1829822, 10064021, 20128042]

約数ペア:

[(1, 20128042), (2, 10064021), (11, 1829822), (22, 914911), (43, 468094), (86, 234047), (473, 42554), (946, 21277)]