388521749

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1\times {\mathrm{457}}^1$

素因数の和:717

約数の個数: 32

約数和(自身を含む): 496134912

約数和(自身を除く): 107613163

約数列:

[1, 7, 11, 61, 77, 181, 427, 457, 671, 1267, 1991, 3199, 4697, 5027, 11041, 13937, 27877, 35189, 77287, 82717, 121451, 195139, 306647, 579019, 850157, 909887, 2146529, 5045737, 6369209, 35320159, 55503107, 388521749]

約数ペア:

[(1, 388521749), (7, 55503107), (11, 35320159), (61, 6369209), (77, 5045737), (181, 2146529), (427, 909887), (457, 850157), (671, 579019), (1267, 306647), (1991, 195139), (3199, 121451), (4697, 82717), (5027, 77287), (11041, 35189), (13937, 27877)]