255519

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:135

約数の個数: 24

約数和(自身を含む): 421200

約数和(自身を除く): 165681

約数列:

[1, 3, 9, 11, 29, 33, 87, 89, 99, 261, 267, 319, 801, 957, 979, 2581, 2871, 2937, 7743, 8811, 23229, 28391, 85173, 255519]

約数ペア:

[(1, 255519), (3, 85173), (9, 28391), (11, 23229), (29, 8811), (33, 7743), (87, 2937), (89, 2871), (99, 2581), (261, 979), (267, 957), (319, 801)]