209550892852

素因数分解:

$2^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{37989647}}^1$

素因数の和:37989855

約数の個数: 24

約数和(自身を含む): 421229217024

約数和(自身を除く): 211678324172

約数列:

[1, 2, 4, 7, 14, 28, 197, 394, 788, 1379, 2758, 5516, 37989647, 75979294, 151958588, 265927529, 531855058, 1063710116, 7483960459, 14967920918, 29935841836, 52387723213, 104775446426, 209550892852]

約数ペア:

[(1, 209550892852), (2, 104775446426), (4, 52387723213), (7, 29935841836), (14, 14967920918), (28, 7483960459), (197, 1063710116), (394, 531855058), (788, 265927529), (1379, 151958588), (2758, 75979294), (5516, 37989647)]