20406448

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{21617}}^1$

素因数の和:21684

約数の個数: 20

約数和(自身を含む): 40209480

約数和(自身を除く): 19803032

約数列:

[1, 2, 4, 8, 16, 59, 118, 236, 472, 944, 21617, 43234, 86468, 172936, 345872, 1275403, 2550806, 5101612, 10203224, 20406448]

約数ペア:

[(1, 20406448), (2, 10203224), (4, 5101612), (8, 2550806), (16, 1275403), (59, 345872), (118, 172936), (236, 86468), (472, 43234), (944, 21617)]