18950113

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{419}}^1$

素因数の和:517

約数の個数: 24

約数和(自身を含む): 24131520

約数和(自身を除く): 5181407

約数列:

[1, 7, 13, 49, 71, 91, 419, 497, 637, 923, 2933, 3479, 5447, 6461, 20531, 29749, 38129, 45227, 208243, 266903, 386737, 1457701, 2707159, 18950113]

約数ペア:

[(1, 18950113), (7, 2707159), (13, 1457701), (49, 386737), (71, 266903), (91, 208243), (419, 45227), (497, 38129), (637, 29749), (923, 20531), (2933, 6461), (3479, 5447)]