20012978

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{5209}}^1$

素因数の和:5341

約数の個数: 16

約数和(自身を含む): 32072760

約数和(自身を除く): 12059782

約数列:

[1, 2, 17, 34, 113, 226, 1921, 3842, 5209, 10418, 88553, 177106, 588617, 1177234, 10006489, 20012978]

約数ペア:

[(1, 20012978), (2, 10006489), (17, 1177234), (34, 588617), (113, 177106), (226, 88553), (1921, 10418), (3842, 5209)]