21338031

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{49739}}^1$

素因数の和:49766

約数の個数: 16

約数和(自身を含む): 33425280

約数和(自身を除く): 12087249

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 49739, 149217, 547129, 646607, 1641387, 1939821, 7112677, 21338031]

約数ペア:

[(1, 21338031), (3, 7112677), (11, 1939821), (13, 1641387), (33, 646607), (39, 547129), (143, 149217), (429, 49739)]