388376499

素因数分解:

$3^1\times 7^3\times {\mathrm{571}}^1\times {\mathrm{661}}^1$

素因数の和:1256

約数の個数: 32

約数和(自身を含む): 605862400

約数和(自身を除く): 217485901

約数列:

[1, 3, 7, 21, 49, 147, 343, 571, 661, 1029, 1713, 1983, 3997, 4627, 11991, 13881, 27979, 32389, 83937, 97167, 195853, 226723, 377431, 587559, 680169, 1132293, 2642017, 7926051, 18494119, 55482357, 129458833, 388376499]

約数ペア:

[(1, 388376499), (3, 129458833), (7, 55482357), (21, 18494119), (49, 7926051), (147, 2642017), (343, 1132293), (571, 680169), (661, 587559), (1029, 377431), (1713, 226723), (1983, 195853), (3997, 97167), (4627, 83937), (11991, 32389), (13881, 27979)]