21061821

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{743}}^1\times {\mathrm{859}}^1$

素因数の和:1616

約数の個数: 16

約数和(自身を含む): 30712320

約数和(自身を除く): 9650499

約数列:

[1, 3, 11, 33, 743, 859, 2229, 2577, 8173, 9449, 24519, 28347, 638237, 1914711, 7020607, 21061821]

約数ペア:

[(1, 21061821), (3, 7020607), (11, 1914711), (33, 638237), (743, 28347), (859, 24519), (2229, 9449), (2577, 8173)]