28528713

素因数分解:

$3^3\times {\mathrm{239}}^1\times {\mathrm{4421}}^1$

素因数の和:4669

約数の個数: 16

約数和(自身を含む): 42451200

約数和(自身を除く): 13922487

約数列:

[1, 3, 9, 27, 239, 717, 2151, 4421, 6453, 13263, 39789, 119367, 1056619, 3169857, 9509571, 28528713]

約数ペア:

[(1, 28528713), (3, 9509571), (9, 3169857), (27, 1056619), (239, 119367), (717, 39789), (2151, 13263), (4421, 6453)]