19483919

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{419}}^1$

素因数の和:519

約数の個数: 24

約数和(自身を含む): 24801840

約数和(自身を除く): 5317921

約数列:

[1, 7, 13, 49, 73, 91, 419, 511, 637, 949, 2933, 3577, 5447, 6643, 20531, 30587, 38129, 46501, 214109, 266903, 397631, 1498763, 2783417, 19483919]

約数ペア:

[(1, 19483919), (7, 2783417), (13, 1498763), (49, 397631), (73, 266903), (91, 214109), (419, 46501), (511, 38129), (637, 30587), (949, 20531), (2933, 6643), (3577, 5447)]