21456928

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{35291}}^1$

素因数の和:35320

約数の個数: 24

約数和(自身を含む): 44467920

約数和(自身を除く): 23010992

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 304, 608, 35291, 70582, 141164, 282328, 564656, 670529, 1129312, 1341058, 2682116, 5364232, 10728464, 21456928]

約数ペア:

[(1, 21456928), (2, 10728464), (4, 5364232), (8, 2682116), (16, 1341058), (19, 1129312), (32, 670529), (38, 564656), (76, 282328), (152, 141164), (304, 70582), (608, 35291)]