20713021

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{9161}}^1$

素因数の和:9204

約数の個数: 16

約数和(自身を含む): 26386560

約数和(自身を除く): 5673539

約数列:

[1, 7, 17, 19, 119, 133, 323, 2261, 9161, 64127, 155737, 174059, 1090159, 1218413, 2959003, 20713021]

約数ペア:

[(1, 20713021), (7, 2959003), (17, 1218413), (19, 1090159), (119, 174059), (133, 155737), (323, 64127), (2261, 9161)]