28977417

素因数分解:

$3^2\times 7^1\times {\mathrm{353}}^1\times {\mathrm{1303}}^1$

素因数の和:1669

約数の個数: 24

約数和(自身を含む): 48008064

約数和(自身を除く): 19030647

約数列:

[1, 3, 7, 9, 21, 63, 353, 1059, 1303, 2471, 3177, 3909, 7413, 9121, 11727, 22239, 27363, 82089, 459959, 1379877, 3219713, 4139631, 9659139, 28977417]

約数ペア:

[(1, 28977417), (3, 9659139), (7, 4139631), (9, 3219713), (21, 1379877), (63, 459959), (353, 82089), (1059, 27363), (1303, 22239), (2471, 11727), (3177, 9121), (3909, 7413)]