388978894

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{19447}}^1$

素因数の和:19659

約数の個数: 16

約数和(自身を含む): 595808928

約数和(自身を除く): 206830034

約数列:

[1, 2, 73, 137, 146, 274, 10001, 19447, 20002, 38894, 1419631, 2664239, 2839262, 5328478, 194489447, 388978894]

約数ペア:

[(1, 388978894), (2, 194489447), (73, 5328478), (137, 2839262), (146, 2664239), (274, 1419631), (10001, 38894), (19447, 20002)]