20643459

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{1069}}^1$

素因数の和:1270

約数の個数: 16

約数和(自身を含む): 28402080

約数和(自身を除く): 7758621

約数列:

[1, 3, 41, 123, 157, 471, 1069, 3207, 6437, 19311, 43829, 131487, 167833, 503499, 6881153, 20643459]

約数ペア:

[(1, 20643459), (3, 6881153), (41, 503499), (123, 167833), (157, 131487), (471, 43829), (1069, 19311), (3207, 6437)]