20612955

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{277}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 37269792

約数和(自身を除く): 16656837

約数列:

[1, 3, 5, 11, 15, 33, 41, 55, 121, 123, 165, 205, 277, 363, 451, 605, 615, 831, 1353, 1385, 1815, 2255, 3047, 4155, 4961, 6765, 9141, 11357, 14883, 15235, 24805, 33517, 34071, 45705, 56785, 74415, 100551, 124927, 167585, 170355, 374781, 502755, 624635, 1374197, 1873905, 4122591, 6870985, 20612955]

約数ペア:

[(1, 20612955), (3, 6870985), (5, 4122591), (11, 1873905), (15, 1374197), (33, 624635), (41, 502755), (55, 374781), (121, 170355), (123, 167585), (165, 124927), (205, 100551), (277, 74415), (363, 56785), (451, 45705), (605, 34071), (615, 33517), (831, 24805), (1353, 15235), (1385, 14883), (1815, 11357), (2255, 9141), (3047, 6765), (4155, 4961)]