156988961157

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{393456043}}^1$

素因数の和:393456072

約数の個数: 16

約数和(自身を含む): 251811868160

約数和(自身を除く): 94822907003

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 393456043, 1180368129, 2754192301, 7475664817, 8262576903, 22426994451, 52329653719, 156988961157]

約数ペア:

[(1, 156988961157), (3, 52329653719), (7, 22426994451), (19, 8262576903), (21, 7475664817), (57, 2754192301), (133, 1180368129), (399, 393456043)]