21781683

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{10477}}^1$

素因数の和:10504

約数の個数: 32

約数和(自身を含む): 40235520

約数和(自身を除く): 18453837

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 189, 231, 297, 693, 2079, 10477, 31431, 73339, 94293, 115247, 220017, 282879, 345741, 660051, 806729, 1037223, 1980153, 2420187, 3111669, 7260561, 21781683]

約数ペア:

[(1, 21781683), (3, 7260561), (7, 3111669), (9, 2420187), (11, 1980153), (21, 1037223), (27, 806729), (33, 660051), (63, 345741), (77, 282879), (99, 220017), (189, 115247), (231, 94293), (297, 73339), (693, 31431), (2079, 10477)]