18677337

素因数分解:

$3^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{2687}}^1$

素因数の和:3028

約数の個数: 16

約数和(自身を含む): 28557312

約数和(自身を除く): 9879975

約数列:

[1, 3, 7, 21, 331, 993, 2317, 2687, 6951, 8061, 18809, 56427, 889397, 2668191, 6225779, 18677337]

約数ペア:

[(1, 18677337), (3, 6225779), (7, 2668191), (21, 889397), (331, 56427), (993, 18809), (2317, 8061), (2687, 6951)]