221426860

素因数分解:

$2^2\times 5^1\times {\mathrm{2591}}^1\times {\mathrm{4273}}^1$

素因数の和:6873

約数の個数: 24

約数和(自身を含む): 465284736

約数和(自身を除く): 243857876

約数列:

[1, 2, 4, 5, 10, 20, 2591, 4273, 5182, 8546, 10364, 12955, 17092, 21365, 25910, 42730, 51820, 85460, 11071343, 22142686, 44285372, 55356715, 110713430, 221426860]

約数ペア:

[(1, 221426860), (2, 110713430), (4, 55356715), (5, 44285372), (10, 22142686), (20, 11071343), (2591, 85460), (4273, 51820), (5182, 42730), (8546, 25910), (10364, 21365), (12955, 17092)]