256901217

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{607}}^1\times {\mathrm{1987}}^1$

素因数の和:2668

約数の個数: 16

約数和(自身を含む): 348106752

約数和(自身を除く): 91205535

約数列:

[1, 3, 71, 213, 607, 1821, 1987, 5961, 43097, 129291, 141077, 423231, 1206109, 3618327, 85633739, 256901217]

約数ペア:

[(1, 256901217), (3, 85633739), (71, 3618327), (213, 1206109), (607, 423231), (1821, 141077), (1987, 129291), (5961, 43097)]