21167217

素因数分解:

$3^3\times {\mathrm{127}}^1\times {\mathrm{6173}}^1$

素因数の和:6309

約数の個数: 16

約数和(自身を含む): 31610880

約数和(自身を除く): 10443663

約数列:

[1, 3, 9, 27, 127, 381, 1143, 3429, 6173, 18519, 55557, 166671, 783971, 2351913, 7055739, 21167217]

約数ペア:

[(1, 21167217), (3, 7055739), (9, 2351913), (27, 783971), (127, 166671), (381, 55557), (1143, 18519), (3429, 6173)]