19480978

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{20593}}^1$

素因数の和:20649

約数の個数: 16

約数和(自身を含む): 32620896

約数和(自身を除く): 13139918

約数列:

[1, 2, 11, 22, 43, 86, 473, 946, 20593, 41186, 226523, 453046, 885499, 1770998, 9740489, 19480978]

約数ペア:

[(1, 19480978), (2, 9740489), (11, 1770998), (22, 885499), (43, 453046), (86, 226523), (473, 41186), (946, 20593)]