21039117

素因数分解:

$3^1\times {\mathrm{11}}^4\times {\mathrm{479}}^1$

素因数の和:526

約数の個数: 20

約数和(自身を含む): 30921600

約数和(自身を除く): 9882483

約数列:

[1, 3, 11, 33, 121, 363, 479, 1331, 1437, 3993, 5269, 14641, 15807, 43923, 57959, 173877, 637549, 1912647, 7013039, 21039117]

約数ペア:

[(1, 21039117), (3, 7013039), (11, 1912647), (33, 637549), (121, 173877), (363, 57959), (479, 43923), (1331, 15807), (1437, 14641), (3993, 5269)]