28368263

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{5189}}^1$

素因数の和:5278

約数の個数: 16

約数和(自身を含む): 35873280

約数和(自身を除く): 7505017

約数列:

[1, 7, 11, 71, 77, 497, 781, 5189, 5467, 36323, 57079, 368419, 399553, 2578933, 4052609, 28368263]

約数ペア:

[(1, 28368263), (7, 4052609), (11, 2578933), (71, 399553), (77, 368419), (497, 57079), (781, 36323), (5189, 5467)]