20701791

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1621}}^1$

素因数の和:1684

約数の個数: 32

約数和(自身を含む): 34256640

約数和(自身を除く): 13554849

約数列:

[1, 3, 9, 11, 27, 33, 43, 99, 129, 297, 387, 473, 1161, 1419, 1621, 4257, 4863, 12771, 14589, 17831, 43767, 53493, 69703, 160479, 209109, 481437, 627327, 766733, 1881981, 2300199, 6900597, 20701791]

約数ペア:

[(1, 20701791), (3, 6900597), (9, 2300199), (11, 1881981), (27, 766733), (33, 627327), (43, 481437), (99, 209109), (129, 160479), (297, 69703), (387, 53493), (473, 43767), (1161, 17831), (1419, 14589), (1621, 12771), (4257, 4863)]