21271031937

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{538739}}^1$

素因数の和:538893

約数の個数: 24

約数和(自身を含む): 31768420320

約数和(自身を除く): 10497388383

約数列:

[1, 3, 9, 41, 107, 123, 321, 369, 963, 4387, 13161, 39483, 538739, 1616217, 4848651, 22088299, 57645073, 66264897, 172935219, 198794691, 518805657, 2363447993, 7090343979, 21271031937]

約数ペア:

[(1, 21271031937), (3, 7090343979), (9, 2363447993), (41, 518805657), (107, 198794691), (123, 172935219), (321, 66264897), (369, 57645073), (963, 22088299), (4387, 4848651), (13161, 1616217), (39483, 538739)]