12128781

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{601}}^1$

素因数の和:673

約数の個数: 24

約数和(自身を含む): 19129152

約数和(自身を除く): 7000371

約数列:

[1, 3, 7, 21, 31, 93, 217, 601, 651, 961, 1803, 2883, 4207, 6727, 12621, 18631, 20181, 55893, 130417, 391251, 577561, 1732683, 4042927, 12128781]

約数ペア:

[(1, 12128781), (3, 4042927), (7, 1732683), (21, 577561), (31, 391251), (93, 130417), (217, 55893), (601, 20181), (651, 18631), (961, 12621), (1803, 6727), (2883, 4207)]