12920038

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{7907}}^1$

素因数の和:7971

約数の個数: 16

約数和(自身を含む): 20877120

約数和(自身を除く): 7957082

約数列:

[1, 2, 19, 38, 43, 86, 817, 1634, 7907, 15814, 150233, 300466, 340001, 680002, 6460019, 12920038]

約数ペア:

[(1, 12920038), (2, 6460019), (19, 680002), (38, 340001), (43, 300466), (86, 150233), (817, 15814), (1634, 7907)]