18428375

素因数分解:

$5^3\times 7^1\times {\mathrm{21061}}^1$

素因数の和:21083

約数の個数: 16

約数和(自身を含む): 26285376

約数和(自身を除く): 7857001

約数列:

[1, 5, 7, 25, 35, 125, 175, 875, 21061, 105305, 147427, 526525, 737135, 2632625, 3685675, 18428375]

約数ペア:

[(1, 18428375), (5, 3685675), (7, 2632625), (25, 737135), (35, 526525), (125, 147427), (175, 105305), (875, 21061)]