21023272

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{138311}}^1$

素因数の和:138336

約数の個数: 16

約数和(自身を含む): 41493600

約数和(自身を除く): 20470328

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 138311, 276622, 553244, 1106488, 2627909, 5255818, 10511636, 21023272]

約数ペア:

[(1, 21023272), (2, 10511636), (4, 5255818), (8, 2627909), (19, 1106488), (38, 553244), (76, 276622), (152, 138311)]