18421138

素因数分解:

$2^1\times {\mathrm{103}}^1\times {\mathrm{223}}^1\times {\mathrm{401}}^1$

素因数の和:729

約数の個数: 16

約数和(自身を含む): 28094976

約数和(自身を除く): 9673838

約数列:

[1, 2, 103, 206, 223, 401, 446, 802, 22969, 41303, 45938, 82606, 89423, 178846, 9210569, 18421138]

約数ペア:

[(1, 18421138), (2, 9210569), (103, 178846), (206, 89423), (223, 82606), (401, 45938), (446, 41303), (802, 22969)]