21347049

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{1303}}^1$

素因数の和:1476

約数の個数: 16

約数和(自身を含む): 29376512

約数和(自身を除く): 8029463

約数列:

[1, 3, 43, 127, 129, 381, 1303, 3909, 5461, 16383, 56029, 165481, 168087, 496443, 7115683, 21347049]

約数ペア:

[(1, 21347049), (3, 7115683), (43, 496443), (127, 168087), (129, 165481), (381, 56029), (1303, 16383), (3909, 5461)]