21091961

素因数分解:

${\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{1787}}^1$

素因数の和:1864

約数の個数: 16

約数和(自身を含む): 24459840

約数和(自身を除く): 3367879

約数列:

[1, 11, 29, 37, 319, 407, 1073, 1787, 11803, 19657, 51823, 66119, 570053, 727309, 1917451, 21091961]

約数ペア:

[(1, 21091961), (11, 1917451), (29, 727309), (37, 570053), (319, 66119), (407, 51823), (1073, 19657), (1787, 11803)]