18868377

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{59}}^1\times {\mathrm{881}}^1$

素因数の和:965

約数の個数: 24

約数和(自身を含む): 28153440

約数和(自身を除く): 9285063

約数列:

[1, 3, 11, 33, 59, 121, 177, 363, 649, 881, 1947, 2643, 7139, 9691, 21417, 29073, 51979, 106601, 155937, 319803, 571769, 1715307, 6289459, 18868377]

約数ペア:

[(1, 18868377), (3, 6289459), (11, 1715307), (33, 571769), (59, 319803), (121, 155937), (177, 106601), (363, 51979), (649, 29073), (881, 21417), (1947, 9691), (2643, 7139)]