20212821055

素因数分解:

$5^1\times 7^1\times {\mathrm{4211}}^1\times {\mathrm{137143}}^1$

素因数の和:141366

約数の個数: 16

約数和(自身を含む): 27727225344

約数和(自身を除く): 7514404289

約数列:

[1, 5, 7, 35, 4211, 21055, 29477, 137143, 147385, 685715, 960001, 4800005, 577509173, 2887545865, 4042564211, 20212821055]

約数ペア:

[(1, 20212821055), (5, 4042564211), (7, 2887545865), (35, 577509173), (4211, 4800005), (21055, 960001), (29477, 685715), (137143, 147385)]