18720438

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{3187}}^1$

素因数の和:3292

約数の個数: 32

約数和(自身を含む): 41316480

約数和(自身を除く): 22596042

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 89, 178, 267, 534, 979, 1958, 2937, 3187, 5874, 6374, 9561, 19122, 35057, 70114, 105171, 210342, 283643, 567286, 850929, 1701858, 3120073, 6240146, 9360219, 18720438]

約数ペア:

[(1, 18720438), (2, 9360219), (3, 6240146), (6, 3120073), (11, 1701858), (22, 850929), (33, 567286), (66, 283643), (89, 210342), (178, 105171), (267, 70114), (534, 35057), (979, 19122), (1958, 9561), (2937, 6374), (3187, 5874)]