21060081

素因数分解:

$3^6\times 7^1\times {\mathrm{4127}}^1$

素因数の和:4152

約数の個数: 28

約数和(自身を含む): 36095232

約数和(自身を除く): 15035151

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 4127, 5103, 12381, 28889, 37143, 86667, 111429, 260001, 334287, 780003, 1002861, 2340009, 3008583, 7020027, 21060081]

約数ペア:

[(1, 21060081), (3, 7020027), (7, 3008583), (9, 2340009), (21, 1002861), (27, 780003), (63, 334287), (81, 260001), (189, 111429), (243, 86667), (567, 37143), (729, 28889), (1701, 12381), (4127, 5103)]