156931904157

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{393313043}}^1$

素因数の和:393313072

約数の個数: 16

約数和(自身を含む): 251720348160

約数和(自身を除く): 94788444003

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 393313043, 1179939129, 2753191301, 7472947817, 8259573903, 22418843451, 52310634719, 156931904157]

約数ペア:

[(1, 156931904157), (3, 52310634719), (7, 22418843451), (19, 8259573903), (21, 7472947817), (57, 2753191301), (133, 1179939129), (399, 393313043)]