21059728

素因数分解:

$2^4\times {\mathrm{283}}^1\times {\mathrm{4651}}^1$

素因数の和:4942

約数の個数: 20

約数和(自身を含む): 40956208

約数和(自身を除く): 19896480

約数列:

[1, 2, 4, 8, 16, 283, 566, 1132, 2264, 4528, 4651, 9302, 18604, 37208, 74416, 1316233, 2632466, 5264932, 10529864, 21059728]

約数ペア:

[(1, 21059728), (2, 10529864), (4, 5264932), (8, 2632466), (16, 1316233), (283, 74416), (566, 37208), (1132, 18604), (2264, 9302), (4528, 4651)]