636657

素因数分解:

$3^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:149

約数の個数: 24

約数和(自身を含む): 1017792

約数和(自身を除く): 381135

約数列:

[1, 3, 7, 21, 49, 61, 71, 147, 183, 213, 427, 497, 1281, 1491, 2989, 3479, 4331, 8967, 10437, 12993, 30317, 90951, 212219, 636657]

約数ペア:

[(1, 636657), (3, 212219), (7, 90951), (21, 30317), (49, 12993), (61, 10437), (71, 8967), (147, 4331), (183, 3479), (213, 2989), (427, 1491), (497, 1281)]