19115459

素因数分解:

${\mathrm{11}}^2\times {\mathrm{239}}^1\times {\mathrm{661}}^1$

素因数の和:922

約数の個数: 12

約数和(自身を含む): 21131040

約数和(自身を除く): 2015581

約数列:

[1, 11, 121, 239, 661, 2629, 7271, 28919, 79981, 157979, 1737769, 19115459]

約数ペア:

[(1, 19115459), (11, 1737769), (121, 157979), (239, 79981), (661, 28919), (2629, 7271)]