21919952

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{25849}}^1$

素因数の和:25910

約数の個数: 20

約数和(自身を含む): 43272900

約数和(自身を除く): 21352948

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 25849, 51698, 103396, 206792, 413584, 1369997, 2739994, 5479988, 10959976, 21919952]

約数ペア:

[(1, 21919952), (2, 10959976), (4, 5479988), (8, 2739994), (16, 1369997), (53, 413584), (106, 206792), (212, 103396), (424, 51698), (848, 25849)]