20656518

素因数分解:

$2^1\times 3^1\times {\mathrm{73}}^1\times {\mathrm{47161}}^1$

素因数の和:47239

約数の個数: 16

約数和(自身を含む): 41879856

約数和(自身を除く): 21223338

約数列:

[1, 2, 3, 6, 73, 146, 219, 438, 47161, 94322, 141483, 282966, 3442753, 6885506, 10328259, 20656518]

約数ペア:

[(1, 20656518), (2, 10328259), (3, 6885506), (6, 3442753), (73, 282966), (146, 141483), (219, 94322), (438, 47161)]