21508053

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{35317}}^1$

素因数の和:35356

約数の個数: 16

約数和(自身を含む): 33905280

約数和(自身を除く): 12397227

約数列:

[1, 3, 7, 21, 29, 87, 203, 609, 35317, 105951, 247219, 741657, 1024193, 3072579, 7169351, 21508053]

約数ペア:

[(1, 21508053), (3, 7169351), (7, 3072579), (21, 1024193), (29, 741657), (87, 247219), (203, 105951), (609, 35317)]