21050671107

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{56519}}^1$

素因数の和:56715

約数の個数: 32

約数和(自身を含む): 30439411200

約数和(自身を除く): 9388740093

約数列:

[1, 3, 17, 51, 67, 109, 201, 327, 1139, 1853, 3417, 5559, 7303, 21909, 56519, 124151, 169557, 372453, 960823, 2882469, 3786773, 6160571, 11360319, 18481713, 64375141, 104729707, 193125423, 314189121, 412758257, 1238274771, 7016890369, 21050671107]

約数ペア:

[(1, 21050671107), (3, 7016890369), (17, 1238274771), (51, 412758257), (67, 314189121), (109, 193125423), (201, 104729707), (327, 64375141), (1139, 18481713), (1853, 11360319), (3417, 6160571), (5559, 3786773), (7303, 2882469), (21909, 960823), (56519, 372453), (124151, 169557)]