19448728

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4349}}^1$

素因数の和:4411

約数の個数: 32

約数和(自身を含む): 40194000

約数和(自身を除く): 20745272

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4349, 4472, 8698, 17396, 34792, 56537, 113074, 187007, 226148, 374014, 452296, 748028, 1496056, 2431091, 4862182, 9724364, 19448728]

約数ペア:

[(1, 19448728), (2, 9724364), (4, 4862182), (8, 2431091), (13, 1496056), (26, 748028), (43, 452296), (52, 374014), (86, 226148), (104, 187007), (172, 113074), (344, 56537), (559, 34792), (1118, 17396), (2236, 8698), (4349, 4472)]