128574257

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{347}}^1\times {\mathrm{1231}}^1$

素因数の和:1628

約数の個数: 16

約数和(自身を含む): 150915072

約数和(自身を除く): 22340815

約数列:

[1, 7, 43, 301, 347, 1231, 2429, 8617, 14921, 52933, 104447, 370531, 427157, 2990099, 18367751, 128574257]

約数ペア:

[(1, 128574257), (7, 18367751), (43, 2990099), (301, 427157), (347, 370531), (1231, 104447), (2429, 52933), (8617, 14921)]