25369136

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{121967}}^1$

素因数の和:121988

約数の個数: 20

約数和(自身を含む): 52934112

約数和(自身を除く): 27564976

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 121967, 243934, 487868, 975736, 1585571, 1951472, 3171142, 6342284, 12684568, 25369136]

約数ペア:

[(1, 25369136), (2, 12684568), (4, 6342284), (8, 3171142), (13, 1951472), (16, 1585571), (26, 975736), (52, 487868), (104, 243934), (208, 121967)]