19723587

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{419}}^1$

素因数の和:523

約数の個数: 32

約数和(自身を含む): 30481920

約数和(自身を除く): 10758333

約数列:

[1, 3, 13, 17, 39, 51, 71, 213, 221, 419, 663, 923, 1207, 1257, 2769, 3621, 5447, 7123, 15691, 16341, 21369, 29749, 47073, 89247, 92599, 277797, 386737, 505733, 1160211, 1517199, 6574529, 19723587]

約数ペア:

[(1, 19723587), (3, 6574529), (13, 1517199), (17, 1160211), (39, 505733), (51, 386737), (71, 277797), (213, 92599), (221, 89247), (419, 47073), (663, 29749), (923, 21369), (1207, 16341), (1257, 15691), (2769, 7123), (3621, 5447)]