28686777

素因数分解:

$3^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{4127}}^1$

素因数の和:4468

約数の個数: 16

約数和(自身を含む): 43855872

約数和(自身を除く): 15169095

約数列:

[1, 3, 7, 21, 331, 993, 2317, 4127, 6951, 12381, 28889, 86667, 1366037, 4098111, 9562259, 28686777]

約数ペア:

[(1, 28686777), (3, 9562259), (7, 4098111), (21, 1366037), (331, 86667), (993, 28889), (2317, 12381), (4127, 6951)]