19805769

素因数分解:

$3^3\times {\mathrm{59}}^1\times {\mathrm{12433}}^1$

素因数の和:12501

約数の個数: 16

約数和(自身を含む): 29841600

約数和(自身を除く): 10035831

約数列:

[1, 3, 9, 27, 59, 177, 531, 1593, 12433, 37299, 111897, 335691, 733547, 2200641, 6601923, 19805769]

約数ペア:

[(1, 19805769), (3, 6601923), (9, 2200641), (27, 733547), (59, 335691), (177, 111897), (531, 37299), (1593, 12433)]