20911803

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{14737}}^1$

素因数の和:14794

約数の個数: 16

約数和(自身を含む): 31126656

約数和(自身を除く): 10214853

約数列:

[1, 3, 11, 33, 43, 129, 473, 1419, 14737, 44211, 162107, 486321, 633691, 1901073, 6970601, 20911803]

約数ペア:

[(1, 20911803), (3, 6970601), (11, 1901073), (33, 633691), (43, 486321), (129, 162107), (473, 44211), (1419, 14737)]