28997891

素因数分解:

${\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{353}}^1$

素因数の和:526

約数の個数: 16

約数和(自身を含む): 32114880

約数和(自身を除く): 3116989

約数列:

[1, 13, 71, 89, 353, 923, 1157, 4589, 6319, 25063, 31417, 82147, 325819, 408421, 2230607, 28997891]

約数ペア:

[(1, 28997891), (13, 2230607), (71, 408421), (89, 325819), (353, 82147), (923, 31417), (1157, 25063), (4589, 6319)]