21055639

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{1033}}^1$

素因数の和:1170

約数の個数: 16

約数和(自身を含む): 24567840

約数和(自身を除く): 3512201

約数列:

[1, 11, 17, 109, 187, 1033, 1199, 1853, 11363, 17561, 20383, 112597, 193171, 1238567, 1914149, 21055639]

約数ペア:

[(1, 21055639), (11, 1914149), (17, 1238567), (109, 193171), (187, 112597), (1033, 20383), (1199, 17561), (1853, 11363)]