18871581

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{7873}}^1$

素因数の和:7940

約数の個数: 16

約数和(自身を含む): 27212544

約数和(自身を除く): 8340963

約数列:

[1, 3, 17, 47, 51, 141, 799, 2397, 7873, 23619, 133841, 370031, 401523, 1110093, 6290527, 18871581]

約数ペア:

[(1, 18871581), (3, 6290527), (17, 1110093), (47, 401523), (51, 370031), (141, 133841), (799, 23619), (2397, 7873)]