27391445

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:257

約数の個数: 32

約数和(自身を含む): 36495360

約数和(自身を除く): 9103915

約数列:

[1, 5, 19, 31, 71, 95, 131, 155, 355, 589, 655, 1349, 2201, 2489, 2945, 4061, 6745, 9301, 11005, 12445, 20305, 41819, 46505, 77159, 176719, 209095, 288331, 385795, 883595, 1441655, 5478289, 27391445]

約数ペア:

[(1, 27391445), (5, 5478289), (19, 1441655), (31, 883595), (71, 385795), (95, 288331), (131, 209095), (155, 176719), (355, 77159), (589, 46505), (655, 41819), (1349, 20305), (2201, 12445), (2489, 11005), (2945, 9301), (4061, 6745)]