28353969

素因数分解:

$3^5\times 7^1\times {\mathrm{79}}^1\times {\mathrm{211}}^1$

素因数の和:312

約数の個数: 48

約数和(自身を含む): 49387520

約数和(自身を除く): 21033551

約数列:

[1, 3, 7, 9, 21, 27, 63, 79, 81, 189, 211, 237, 243, 553, 567, 633, 711, 1477, 1659, 1701, 1899, 2133, 4431, 4977, 5697, 6399, 13293, 14931, 16669, 17091, 19197, 39879, 44793, 50007, 51273, 116683, 119637, 134379, 150021, 350049, 358911, 450063, 1050147, 1350189, 3150441, 4050567, 9451323, 28353969]

約数ペア:

[(1, 28353969), (3, 9451323), (7, 4050567), (9, 3150441), (21, 1350189), (27, 1050147), (63, 450063), (79, 358911), (81, 350049), (189, 150021), (211, 134379), (237, 119637), (243, 116683), (553, 51273), (567, 50007), (633, 44793), (711, 39879), (1477, 19197), (1659, 17091), (1701, 16669), (1899, 14931), (2133, 13293), (4431, 6399), (4977, 5697)]