21449519

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{5749}}^1$

素因数の和:5810

約数の個数: 16

約数和(自身を含む): 27048000

約数和(自身を除く): 5598481

約数列:

[1, 7, 13, 41, 91, 287, 533, 3731, 5749, 40243, 74737, 235709, 523159, 1649963, 3064217, 21449519]

約数ペア:

[(1, 21449519), (7, 3064217), (13, 1649963), (41, 523159), (91, 235709), (287, 74737), (533, 40243), (3731, 5749)]