21664041

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{8123}}^1$

素因数の和:8260

約数の個数: 16

約数和(自身を含む): 33275904

約数和(自身を除く): 11611863

約数列:

[1, 3, 7, 21, 127, 381, 889, 2667, 8123, 24369, 56861, 170583, 1031621, 3094863, 7221347, 21664041]

約数ペア:

[(1, 21664041), (3, 7221347), (7, 3094863), (21, 1031621), (127, 170583), (381, 56861), (889, 24369), (2667, 8123)]