20488269

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{1409}}^1$

素因数の和:1580

約数の個数: 16

約数和(自身を含む): 28290240

約数和(自身を除く): 7801971

約数列:

[1, 3, 37, 111, 131, 393, 1409, 4227, 4847, 14541, 52133, 156399, 184579, 553737, 6829423, 20488269]

約数ペア:

[(1, 20488269), (3, 6829423), (37, 553737), (111, 184579), (131, 156399), (393, 52133), (1409, 14541), (4227, 4847)]