21140678

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{5179}}^1$

素因数の和:5351

約数の個数: 16

約数和(自身を含む): 34374480

約数和(自身を除く): 13233802

約数列:

[1, 2, 13, 26, 157, 314, 2041, 4082, 5179, 10358, 67327, 134654, 813103, 1626206, 10570339, 21140678]

約数ペア:

[(1, 21140678), (2, 10570339), (13, 1626206), (26, 813103), (157, 134654), (314, 67327), (2041, 10358), (4082, 5179)]