19690414

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{2203}}^1$

素因数の和:2355

約数の個数: 16

約数和(自身を含む): 30547440

約数和(自身を除く): 10857026

約数列:

[1, 2, 41, 82, 109, 218, 2203, 4406, 4469, 8938, 90323, 180646, 240127, 480254, 9845207, 19690414]

約数ペア:

[(1, 19690414), (2, 9845207), (41, 480254), (82, 240127), (109, 180646), (218, 90323), (2203, 8938), (4406, 4469)]