21728368

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{20269}}^1$

素因数の和:20344

約数の個数: 20

約数和(自身を含む): 42729160

約数和(自身を除く): 21000792

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 20269, 40538, 81076, 162152, 324304, 1358023, 2716046, 5432092, 10864184, 21728368]

約数ペア:

[(1, 21728368), (2, 10864184), (4, 5432092), (8, 2716046), (16, 1358023), (67, 324304), (134, 162152), (268, 81076), (536, 40538), (1072, 20269)]