397332327

素因数分解:

$3^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{21283}}^1$

素因数の和:21427

約数の個数: 24

約数和(自身を含む): 621152256

約数和(自身を除く): 223819929

約数列:

[1, 3, 7, 21, 49, 127, 147, 381, 889, 2667, 6223, 18669, 21283, 63849, 148981, 446943, 1042867, 2702941, 3128601, 8108823, 18920587, 56761761, 132444109, 397332327]

約数ペア:

[(1, 397332327), (3, 132444109), (7, 56761761), (21, 18920587), (49, 8108823), (127, 3128601), (147, 2702941), (381, 1042867), (889, 446943), (2667, 148981), (6223, 63849), (18669, 21283)]