19837727

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{409}}^1$

素因数の和:483

約数の個数: 24

約数和(自身を含む): 25210080

約数和(自身を除く): 5372353

約数列:

[1, 7, 13, 41, 91, 169, 287, 409, 533, 1183, 2863, 3731, 5317, 6929, 16769, 37219, 48503, 69121, 117383, 217997, 483847, 1525979, 2833961, 19837727]

約数ペア:

[(1, 19837727), (7, 2833961), (13, 1525979), (41, 483847), (91, 217997), (169, 117383), (287, 69121), (409, 48503), (533, 37219), (1183, 16769), (2863, 6929), (3731, 5317)]