20854603

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{1361}}^1$

素因数の和:1578

約数の個数: 16

約数和(自身を含む): 26150400

約数和(自身を除く): 5295797

約数列:

[1, 7, 11, 77, 199, 1361, 1393, 2189, 9527, 14971, 15323, 104797, 270839, 1895873, 2979229, 20854603]

約数ペア:

[(1, 20854603), (7, 2979229), (11, 1895873), (77, 270839), (199, 104797), (1361, 15323), (1393, 14971), (2189, 9527)]