18403390

素因数分解:

$2^1\times 5^1\times {\mathrm{457}}^1\times {\mathrm{4027}}^1$

素因数の和:4491

約数の個数: 16

約数和(自身を含む): 33206832

約数和(自身を除く): 14803442

約数列:

[1, 2, 5, 10, 457, 914, 2285, 4027, 4570, 8054, 20135, 40270, 1840339, 3680678, 9201695, 18403390]

約数ペア:

[(1, 18403390), (2, 9201695), (5, 3680678), (10, 1840339), (457, 40270), (914, 20135), (2285, 8054), (4027, 4570)]