21307495

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{859}}^1$

素因数の和:927

約数の個数: 24

約数和(自身を含む): 28823760

約数和(自身を除く): 7516265

約数列:

[1, 5, 11, 41, 55, 121, 205, 451, 605, 859, 2255, 4295, 4961, 9449, 24805, 35219, 47245, 103939, 176095, 387409, 519695, 1937045, 4261499, 21307495]

約数ペア:

[(1, 21307495), (5, 4261499), (11, 1937045), (41, 519695), (55, 387409), (121, 176095), (205, 103939), (451, 47245), (605, 35219), (859, 24805), (2255, 9449), (4295, 4961)]