28625989

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:241

約数の個数: 32

約数和(自身を含む): 36495360

約数和(自身を除く): 7869371

約数列:

[1, 7, 19, 31, 53, 131, 133, 217, 371, 589, 917, 1007, 1643, 2489, 4061, 4123, 6943, 7049, 11501, 17423, 28427, 31217, 48601, 77159, 131917, 215233, 218519, 540113, 923419, 1506631, 4089427, 28625989]

約数ペア:

[(1, 28625989), (7, 4089427), (19, 1506631), (31, 923419), (53, 540113), (131, 218519), (133, 215233), (217, 131917), (371, 77159), (589, 48601), (917, 31217), (1007, 28427), (1643, 17423), (2489, 11501), (4061, 7049), (4123, 6943)]