205787421

素因数分解:

$3^2\times 7^1\times {\mathrm{269}}^1\times {\mathrm{12143}}^1$

素因数の和:12425

約数の個数: 24

約数和(自身を含む): 341003520

約数和(自身を除く): 135216099

約数列:

[1, 3, 7, 9, 21, 63, 269, 807, 1883, 2421, 5649, 12143, 16947, 36429, 85001, 109287, 255003, 765009, 3266467, 9799401, 22865269, 29398203, 68595807, 205787421]

約数ペア:

[(1, 205787421), (3, 68595807), (7, 29398203), (9, 22865269), (21, 9799401), (63, 3266467), (269, 765009), (807, 255003), (1883, 109287), (2421, 85001), (5649, 36429), (12143, 16947)]