21139035

素因数分解:

$3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{6679}}^1$

素因数の和:6898

約数の個数: 16

約数和(自身を含む): 33987840

約数和(自身を除く): 12848805

約数列:

[1, 3, 5, 15, 211, 633, 1055, 3165, 6679, 20037, 33395, 100185, 1409269, 4227807, 7046345, 21139035]

約数ペア:

[(1, 21139035), (3, 7046345), (5, 4227807), (15, 1409269), (211, 100185), (633, 33395), (1055, 20037), (3165, 6679)]