20964208

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{12721}}^1$

素因数の和:12832

約数の個数: 20

約数和(自身を含む): 41015728

約数和(自身を除く): 20051520

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 12721, 25442, 50884, 101768, 203536, 1310263, 2620526, 5241052, 10482104, 20964208]

約数ペア:

[(1, 20964208), (2, 10482104), (4, 5241052), (8, 2620526), (16, 1310263), (103, 203536), (206, 101768), (412, 50884), (824, 25442), (1648, 12721)]