27981723

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{4177}}^1$

素因数の和:4227

約数の個数: 32

約数和(自身を含む): 48130560

約数和(自身を除く): 20148837

約数列:

[1, 3, 7, 11, 21, 29, 33, 77, 87, 203, 231, 319, 609, 957, 2233, 4177, 6699, 12531, 29239, 45947, 87717, 121133, 137841, 321629, 363399, 847931, 964887, 1332463, 2543793, 3997389, 9327241, 27981723]

約数ペア:

[(1, 27981723), (3, 9327241), (7, 3997389), (11, 2543793), (21, 1332463), (29, 964887), (33, 847931), (77, 363399), (87, 321629), (203, 137841), (231, 121133), (319, 87717), (609, 45947), (957, 29239), (2233, 12531), (4177, 6699)]