21574707

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{1583}}^1$

素因数の和:1663

約数の個数: 32

約数和(自身を含む): 36495360

約数和(自身を除く): 14920653

約数列:

[1, 3, 7, 11, 21, 33, 59, 77, 177, 231, 413, 649, 1239, 1583, 1947, 4543, 4749, 11081, 13629, 17413, 33243, 52239, 93397, 121891, 280191, 365673, 653779, 1027367, 1961337, 3082101, 7191569, 21574707]

約数ペア:

[(1, 21574707), (3, 7191569), (7, 3082101), (11, 1961337), (21, 1027367), (33, 653779), (59, 365673), (77, 280191), (177, 121891), (231, 93397), (413, 52239), (649, 33243), (1239, 17413), (1583, 13629), (1947, 11081), (4543, 4749)]