12978618

素因数分解:

$2^1\times 3^1\times {\mathrm{103}}^1\times {\mathrm{21001}}^1$

素因数の和:21109

約数の個数: 16

約数和(自身を含む): 26210496

約数和(自身を除く): 13231878

約数列:

[1, 2, 3, 6, 103, 206, 309, 618, 21001, 42002, 63003, 126006, 2163103, 4326206, 6489309, 12978618]

約数ペア:

[(1, 12978618), (2, 6489309), (3, 4326206), (6, 2163103), (103, 126006), (206, 63003), (309, 42002), (618, 21001)]