28704489

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{23509}}^1$

素因数の和:23560

約数の個数: 16

約数和(自身を含む): 42882240

約数和(自身を除く): 14177751

約数列:

[1, 3, 11, 33, 37, 111, 407, 1221, 23509, 70527, 258599, 775797, 869833, 2609499, 9568163, 28704489]

約数ペア:

[(1, 28704489), (3, 9568163), (11, 2609499), (33, 869833), (37, 775797), (111, 258599), (407, 70527), (1221, 23509)]