21475556

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{313}}^1\times {\mathrm{1009}}^1$

素因数の和:1343

約数の個数: 24

約数和(自身を含む): 39959640

約数和(自身を除く): 18484084

約数列:

[1, 2, 4, 17, 34, 68, 313, 626, 1009, 1252, 2018, 4036, 5321, 10642, 17153, 21284, 34306, 68612, 315817, 631634, 1263268, 5368889, 10737778, 21475556]

約数ペア:

[(1, 21475556), (2, 10737778), (4, 5368889), (17, 1263268), (34, 631634), (68, 315817), (313, 68612), (626, 34306), (1009, 21284), (1252, 17153), (2018, 10642), (4036, 5321)]