28520271

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{1103}}^1$

素因数の和:1152

約数の個数: 36

約数和(自身を含む): 47275488

約数和(自身を除く): 18755217

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 169, 221, 507, 663, 1103, 1521, 1989, 2873, 3309, 8619, 9927, 14339, 18751, 25857, 43017, 56253, 129051, 168759, 186407, 243763, 559221, 731289, 1677663, 2193867, 3168919, 9506757, 28520271]

約数ペア:

[(1, 28520271), (3, 9506757), (9, 3168919), (13, 2193867), (17, 1677663), (39, 731289), (51, 559221), (117, 243763), (153, 186407), (169, 168759), (221, 129051), (507, 56253), (663, 43017), (1103, 25857), (1521, 18751), (1989, 14339), (2873, 9927), (3309, 8619)]