18364887

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{11933}}^1$

素因数の和:11964

約数の個数: 20

約数和(自身を含む): 28880280

約数和(自身を除く): 10515393

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 11933, 35799, 107397, 226727, 322191, 680181, 966573, 2040543, 6121629, 18364887]

約数ペア:

[(1, 18364887), (3, 6121629), (9, 2040543), (19, 966573), (27, 680181), (57, 322191), (81, 226727), (171, 107397), (513, 35799), (1539, 11933)]