20986986

素因数分解:

$2^1\times 3^1\times {\mathrm{131}}^1\times {\mathrm{26701}}^1$

素因数の和:26837

約数の個数: 16

約数和(自身を含む): 42295968

約数和(自身を除く): 21308982

約数列:

[1, 2, 3, 6, 131, 262, 393, 786, 26701, 53402, 80103, 160206, 3497831, 6995662, 10493493, 20986986]

約数ペア:

[(1, 20986986), (2, 10493493), (3, 6995662), (6, 3497831), (131, 160206), (262, 80103), (393, 53402), (786, 26701)]