21145195

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{13093}}^1$

素因数の和:13134

約数の個数: 16

約数和(自身を含む): 28283040

約数和(自身を除く): 7137845

約数列:

[1, 5, 17, 19, 85, 95, 323, 1615, 13093, 65465, 222581, 248767, 1112905, 1243835, 4229039, 21145195]

約数ペア:

[(1, 21145195), (5, 4229039), (17, 1243835), (19, 1112905), (85, 248767), (95, 222581), (323, 65465), (1615, 13093)]