21639646

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{32887}}^1$

素因数の和:32943

約数の個数: 16

約数和(自身を含む): 37886976

約数和(自身を除く): 16247330

約数列:

[1, 2, 7, 14, 47, 94, 329, 658, 32887, 65774, 230209, 460418, 1545689, 3091378, 10819823, 21639646]

約数ペア:

[(1, 21639646), (2, 10819823), (7, 3091378), (14, 1545689), (47, 460418), (94, 230209), (329, 65774), (658, 32887)]