27647907

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^2\times {\mathrm{521}}^1$

素因数の和:576

約数の個数: 36

約数和(自身を含む): 45345096

約数和(自身を除く): 17697189

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 361, 399, 521, 931, 1083, 1563, 2527, 2793, 3647, 7581, 9899, 10941, 17689, 25529, 29697, 53067, 69293, 76587, 188081, 207879, 485051, 564243, 1316567, 1455153, 3949701, 9215969, 27647907]

約数ペア:

[(1, 27647907), (3, 9215969), (7, 3949701), (19, 1455153), (21, 1316567), (49, 564243), (57, 485051), (133, 207879), (147, 188081), (361, 76587), (399, 69293), (521, 53067), (931, 29697), (1083, 25529), (1563, 17689), (2527, 10941), (2793, 9899), (3647, 7581)]