21052250

素因数分解:

$2^1\times 5^3\times {\mathrm{107}}^1\times {\mathrm{787}}^1$

素因数の和:911

約数の個数: 32

約数和(自身を含む): 39828672

約数和(自身を除く): 18776422

約数列:

[1, 2, 5, 10, 25, 50, 107, 125, 214, 250, 535, 787, 1070, 1574, 2675, 3935, 5350, 7870, 13375, 19675, 26750, 39350, 84209, 98375, 168418, 196750, 421045, 842090, 2105225, 4210450, 10526125, 21052250]

約数ペア:

[(1, 21052250), (2, 10526125), (5, 4210450), (10, 2105225), (25, 842090), (50, 421045), (107, 196750), (125, 168418), (214, 98375), (250, 84209), (535, 39350), (787, 26750), (1070, 19675), (1574, 13375), (2675, 7870), (3935, 5350)]