21544325

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{499}}^1$

素因数の和:677

約数の個数: 24

約数和(自身を含む): 29388000

約数和(自身を除く): 7843675

約数列:

[1, 5, 11, 25, 55, 157, 275, 499, 785, 1727, 2495, 3925, 5489, 8635, 12475, 27445, 43175, 78343, 137225, 391715, 861773, 1958575, 4308865, 21544325]

約数ペア:

[(1, 21544325), (5, 4308865), (11, 1958575), (25, 861773), (55, 391715), (157, 137225), (275, 78343), (499, 43175), (785, 27445), (1727, 12475), (2495, 8635), (3925, 5489)]