28172697

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{4457}}^1$

素因数の和:4517

約数の個数: 24

約数和(自身を含む): 44722656

約数和(自身を除く): 16549959

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 301, 903, 2107, 4457, 6321, 13371, 31199, 93597, 191651, 218393, 574953, 655179, 1341557, 4024671, 9390899, 28172697]

約数ペア:

[(1, 28172697), (3, 9390899), (7, 4024671), (21, 1341557), (43, 655179), (49, 574953), (129, 218393), (147, 191651), (301, 93597), (903, 31199), (2107, 13371), (4457, 6321)]