28102529

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{281}}^1$

素因数の和:465

約数の個数: 24

約数和(自身を含む): 35555688

約数和(自身を除く): 7453159

約数列:

[1, 7, 13, 49, 91, 157, 281, 637, 1099, 1967, 2041, 3653, 7693, 13769, 14287, 25571, 44117, 100009, 178997, 308819, 573521, 2161733, 4014647, 28102529]

約数ペア:

[(1, 28102529), (7, 4014647), (13, 2161733), (49, 573521), (91, 308819), (157, 178997), (281, 100009), (637, 44117), (1099, 25571), (1967, 14287), (2041, 13769), (3653, 7693)]