21004250

素因数分解:

$2^1\times 5^3\times {\mathrm{84017}}^1$

素因数の和:84034

約数の個数: 16

約数和(自身を含む): 39320424

約数和(自身を除く): 18316174

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 84017, 168034, 420085, 840170, 2100425, 4200850, 10502125, 21004250]

約数ペア:

[(1, 21004250), (2, 10502125), (5, 4200850), (10, 2100425), (25, 840170), (50, 420085), (125, 168034), (250, 84017)]