21374800

素因数分解:

$2^4\times 5^2\times {\mathrm{53437}}^1$

素因数の和:53455

約数の個数: 30

約数和(自身を含む): 51353918

約数和(自身を除く): 29979118

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 53437, 106874, 213748, 267185, 427496, 534370, 854992, 1068740, 1335925, 2137480, 2671850, 4274960, 5343700, 10687400, 21374800]

約数ペア:

[(1, 21374800), (2, 10687400), (4, 5343700), (5, 4274960), (8, 2671850), (10, 2137480), (16, 1335925), (20, 1068740), (25, 854992), (40, 534370), (50, 427496), (80, 267185), (100, 213748), (200, 106874), (400, 53437)]