21870297

素因数分解:

$3^3\times {\mathrm{59}}^1\times {\mathrm{13729}}^1$

素因数の和:13797

約数の個数: 16

約数和(自身を含む): 32952000

約数和(自身を除く): 11081703

約数列:

[1, 3, 9, 27, 59, 177, 531, 1593, 13729, 41187, 123561, 370683, 810011, 2430033, 7290099, 21870297]

約数ペア:

[(1, 21870297), (3, 7290099), (9, 2430033), (27, 810011), (59, 370683), (177, 123561), (531, 41187), (1593, 13729)]