21908408

素因数分解:

$2^3\times {\mathrm{157}}^1\times {\mathrm{17443}}^1$

素因数の和:17606

約数の個数: 16

約数和(自身を含む): 41342280

約数和(自身を除く): 19433872

約数列:

[1, 2, 4, 8, 157, 314, 628, 1256, 17443, 34886, 69772, 139544, 2738551, 5477102, 10954204, 21908408]

約数ペア:

[(1, 21908408), (2, 10954204), (4, 5477102), (8, 2738551), (157, 139544), (314, 69772), (628, 34886), (1256, 17443)]