20007009

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{1129}}^1$

素因数の和:1325

約数の個数: 24

約数和(自身を含む): 31730400

約数和(自身を除く): 11723391

約数列:

[1, 3, 9, 11, 33, 99, 179, 537, 1129, 1611, 1969, 3387, 5907, 10161, 12419, 17721, 37257, 111771, 202091, 606273, 1818819, 2223001, 6669003, 20007009]

約数ペア:

[(1, 20007009), (3, 6669003), (9, 2223001), (11, 1818819), (33, 606273), (99, 202091), (179, 111771), (537, 37257), (1129, 17721), (1611, 12419), (1969, 10161), (3387, 5907)]