21315663

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1123}}^1$

素因数の和:1188

約数の個数: 32

約数和(自身を含む): 34169600

約数和(自身を除く): 12853937

約数列:

[1, 3, 9, 19, 27, 37, 57, 111, 171, 333, 513, 703, 999, 1123, 2109, 3369, 6327, 10107, 18981, 21337, 30321, 41551, 64011, 124653, 192033, 373959, 576099, 789469, 1121877, 2368407, 7105221, 21315663]

約数ペア:

[(1, 21315663), (3, 7105221), (9, 2368407), (19, 1121877), (27, 789469), (37, 576099), (57, 373959), (111, 192033), (171, 124653), (333, 64011), (513, 41551), (703, 30321), (999, 21337), (1123, 18981), (2109, 10107), (3369, 6327)]