28804671

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{193}}^1$

素因数の和:332

約数の個数: 48

約数和(自身を含む): 50359296

約数和(自身を除く): 21554625

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 103, 161, 193, 207, 309, 483, 579, 721, 927, 1351, 1449, 1737, 2163, 2369, 4053, 4439, 6489, 7107, 12159, 13317, 16583, 19879, 21321, 31073, 39951, 49749, 59637, 93219, 139153, 149247, 178911, 279657, 417459, 457217, 1252377, 1371651, 3200519, 4114953, 9601557, 28804671]

約数ペア:

[(1, 28804671), (3, 9601557), (7, 4114953), (9, 3200519), (21, 1371651), (23, 1252377), (63, 457217), (69, 417459), (103, 279657), (161, 178911), (193, 149247), (207, 139153), (309, 93219), (483, 59637), (579, 49749), (721, 39951), (927, 31073), (1351, 21321), (1449, 19879), (1737, 16583), (2163, 13317), (2369, 12159), (4053, 7107), (4439, 6489)]