21259450

素因数分解:

$2^1\times 5^2\times {\mathrm{425189}}^1$

素因数の和:425201

約数の個数: 12

約数和(自身を含む): 39542670

約数和(自身を除く): 18283220

約数列:

[1, 2, 5, 10, 25, 50, 425189, 850378, 2125945, 4251890, 10629725, 21259450]

約数ペア:

[(1, 21259450), (2, 10629725), (5, 4251890), (10, 2125945), (25, 850378), (50, 425189)]