19848087

素因数分解:

$3^2\times 7^2\times {\mathrm{45007}}^1$

素因数の和:45027

約数の個数: 18

約数和(自身を含む): 33350928

約数和(自身を除く): 13502841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 45007, 135021, 315049, 405063, 945147, 2205343, 2835441, 6616029, 19848087]

約数ペア:

[(1, 19848087), (3, 6616029), (7, 2835441), (9, 2205343), (21, 945147), (49, 405063), (63, 315049), (147, 135021), (441, 45007)]