21090927

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{233}}^1$

素因数の和:471

約数の個数: 32

約数和(自身を含む): 33336576

約数和(自身を除く): 12245649

約数列:

[1, 3, 11, 13, 33, 39, 143, 211, 233, 429, 633, 699, 2321, 2563, 2743, 3029, 6963, 7689, 8229, 9087, 30173, 33319, 49163, 90519, 99957, 147489, 540793, 639119, 1622379, 1917357, 7030309, 21090927]

約数ペア:

[(1, 21090927), (3, 7030309), (11, 1917357), (13, 1622379), (33, 639119), (39, 540793), (143, 147489), (211, 99957), (233, 90519), (429, 49163), (633, 33319), (699, 30173), (2321, 9087), (2563, 8229), (2743, 7689), (3029, 6963)]