20684331

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1657}}^1$

素因数の和:1755

約数の個数: 24

約数和(自身を含む): 31899920

約数和(自身を除く): 11215589

約数列:

[1, 3, 9, 19, 57, 73, 171, 219, 657, 1387, 1657, 4161, 4971, 12483, 14913, 31483, 94449, 120961, 283347, 362883, 1088649, 2298259, 6894777, 20684331]

約数ペア:

[(1, 20684331), (3, 6894777), (9, 2298259), (19, 1088649), (57, 362883), (73, 283347), (171, 120961), (219, 94449), (657, 31483), (1387, 14913), (1657, 12483), (4161, 4971)]