21316772

素因数分解:

$2^2\times {\mathrm{113}}^1\times {\mathrm{47161}}^1$

素因数の和:47278

約数の個数: 12

約数和(自身を含む): 37635276

約数和(自身を除く): 16318504

約数列:

[1, 2, 4, 113, 226, 452, 47161, 94322, 188644, 5329193, 10658386, 21316772]

約数ペア:

[(1, 21316772), (2, 10658386), (4, 5329193), (113, 188644), (226, 94322), (452, 47161)]