213514609

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{20849}}^1$

素因数の和:20893

約数の個数: 24

約数和(自身を含む): 285228000

約数和(自身を除く): 71713391

約数列:

[1, 7, 11, 19, 49, 77, 133, 209, 539, 931, 1463, 10241, 20849, 145943, 229339, 396131, 1021601, 1605373, 2772917, 4357441, 11237611, 19410419, 30502087, 213514609]

約数ペア:

[(1, 213514609), (7, 30502087), (11, 19410419), (19, 11237611), (49, 4357441), (77, 2772917), (133, 1605373), (209, 1021601), (539, 396131), (931, 229339), (1463, 145943), (10241, 20849)]