21128286

素因数分解:

$2^1\times 3^1\times {\mathrm{47}}^1\times {\mathrm{74923}}^1$

素因数の和:74975

約数の個数: 16

約数和(自身を含む): 43156224

約数和(自身を除く): 22027938

約数列:

[1, 2, 3, 6, 47, 94, 141, 282, 74923, 149846, 224769, 449538, 3521381, 7042762, 10564143, 21128286]

約数ペア:

[(1, 21128286), (2, 10564143), (3, 7042762), (6, 3521381), (47, 449538), (94, 224769), (141, 149846), (282, 74923)]