197920009

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1\times {\mathrm{2467}}^1$

素因数の和:2704

約数の個数: 16

約数和(自身を含む): 230846848

約数和(自身を除く): 32926839

約数列:

[1, 7, 73, 157, 511, 1099, 2467, 11461, 17269, 80227, 180091, 387319, 1260637, 2711233, 28274287, 197920009]

約数ペア:

[(1, 197920009), (7, 28274287), (73, 2711233), (157, 1260637), (511, 387319), (1099, 180091), (2467, 80227), (11461, 17269)]