21671248

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{71287}}^1$

素因数の和:71314

約数の個数: 20

約数和(自身を含む): 44198560

約数和(自身を除く): 22527312

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 71287, 142574, 285148, 570296, 1140592, 1354453, 2708906, 5417812, 10835624, 21671248]

約数ペア:

[(1, 21671248), (2, 10835624), (4, 5417812), (8, 2708906), (16, 1354453), (19, 1140592), (38, 570296), (76, 285148), (152, 142574), (304, 71287)]