28397089

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{3361}}^1$

素因数の和:3456

約数の個数: 16

約数和(自身を含む): 34857216

約数和(自身を除く): 6460127

約数列:

[1, 7, 17, 71, 119, 497, 1207, 3361, 8449, 23527, 57137, 238631, 399959, 1670417, 4056727, 28397089]

約数ペア:

[(1, 28397089), (7, 4056727), (17, 1670417), (71, 399959), (119, 238631), (497, 57137), (1207, 23527), (3361, 8449)]