20580777

素因数分解:

$3^3\times 7^1\times {\mathrm{108893}}^1$

素因数の和:108909

約数の個数: 16

約数和(自身を含む): 34846080

約数和(自身を除く): 14265303

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 108893, 326679, 762251, 980037, 2286753, 2940111, 6860259, 20580777]

約数ペア:

[(1, 20580777), (3, 6860259), (7, 2940111), (9, 2286753), (21, 980037), (27, 762251), (63, 326679), (189, 108893)]