21053350

素因数分解:

$2^1\times 5^2\times {\mathrm{109}}^1\times {\mathrm{3863}}^1$

素因数の和:3984

約数の個数: 24

約数和(自身を含む): 39528720

約数和(自身を除く): 18475370

約数列:

[1, 2, 5, 10, 25, 50, 109, 218, 545, 1090, 2725, 3863, 5450, 7726, 19315, 38630, 96575, 193150, 421067, 842134, 2105335, 4210670, 10526675, 21053350]

約数ペア:

[(1, 21053350), (2, 10526675), (5, 4210670), (10, 2105335), (25, 842134), (50, 421067), (109, 193150), (218, 96575), (545, 38630), (1090, 19315), (2725, 7726), (3863, 5450)]