20557072

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{31337}}^1$

素因数の和:31386

約数の個数: 20

約数和(自身を含む): 40802076

約数和(自身を除く): 20245004

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 31337, 62674, 125348, 250696, 501392, 1284817, 2569634, 5139268, 10278536, 20557072]

約数ペア:

[(1, 20557072), (2, 10278536), (4, 5139268), (8, 2569634), (16, 1284817), (41, 501392), (82, 250696), (164, 125348), (328, 62674), (656, 31337)]