78931489

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{2789}}^1$

素因数の和:3120

約数の個数: 16

約数和(自身を含む): 97493760

約数和(自身を除く): 18562271

約数列:

[1, 7, 13, 91, 311, 2177, 2789, 4043, 19523, 28301, 36257, 253799, 867379, 6071653, 11275927, 78931489]

約数ペア:

[(1, 78931489), (7, 11275927), (13, 6071653), (91, 867379), (311, 253799), (2177, 36257), (2789, 28301), (4043, 19523)]