21008412

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{20123}}^1$

素因数の和:20162

約数の個数: 36

約数和(自身を含む): 54938520

約数和(自身を除く): 33930108

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 116, 174, 261, 348, 522, 1044, 20123, 40246, 60369, 80492, 120738, 181107, 241476, 362214, 583567, 724428, 1167134, 1750701, 2334268, 3501402, 5252103, 7002804, 10504206, 21008412]

約数ペア:

[(1, 21008412), (2, 10504206), (3, 7002804), (4, 5252103), (6, 3501402), (9, 2334268), (12, 1750701), (18, 1167134), (29, 724428), (36, 583567), (58, 362214), (87, 241476), (116, 181107), (174, 120738), (261, 80492), (348, 60369), (522, 40246), (1044, 20123)]