18728901

素因数分解:

$3^4\times {\mathrm{59}}^1\times {\mathrm{3919}}^1$

素因数の和:3990

約数の個数: 20

約数和(自身を含む): 28459200

約数和(自身を除く): 9730299

約数列:

[1, 3, 9, 27, 59, 81, 177, 531, 1593, 3919, 4779, 11757, 35271, 105813, 231221, 317439, 693663, 2080989, 6242967, 18728901]

約数ペア:

[(1, 18728901), (3, 6242967), (9, 2080989), (27, 693663), (59, 317439), (81, 231221), (177, 105813), (531, 35271), (1593, 11757), (3919, 4779)]