78285977

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{20749}}^1$

素因数の和:20781

約数の個数: 16

約数和(自身を含む): 99600000

約数和(自身を除く): 21314023

約数列:

[1, 7, 11, 49, 77, 343, 539, 3773, 20749, 145243, 228239, 1016701, 1597673, 7116907, 11183711, 78285977]

約数ペア:

[(1, 78285977), (7, 11183711), (11, 7116907), (49, 1597673), (77, 1016701), (343, 228239), (539, 145243), (3773, 20749)]