21297685

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{5827}}^1$

素因数の和:5892

約数の個数: 16

約数和(自身を含む): 27694656

約数和(自身を除く): 6396971

約数列:

[1, 5, 17, 43, 85, 215, 731, 3655, 5827, 29135, 99059, 250561, 495295, 1252805, 4259537, 21297685]

約数ペア:

[(1, 21297685), (5, 4259537), (17, 1252805), (43, 495295), (85, 250561), (215, 99059), (731, 29135), (3655, 5827)]