20400828

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{242867}}^1$

素因数の和:242881

約数の個数: 24

約数和(自身を含む): 54402432

約数和(自身を除く): 34001604

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 242867, 485734, 728601, 971468, 1457202, 1700069, 2914404, 3400138, 5100207, 6800276, 10200414, 20400828]

約数ペア:

[(1, 20400828), (2, 10200414), (3, 6800276), (4, 5100207), (6, 3400138), (7, 2914404), (12, 1700069), (14, 1457202), (21, 971468), (28, 728601), (42, 485734), (84, 242867)]