291289221

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{688627}}^1$

素因数の和:688680

約数の個数: 12

約数和(自身を含む): 429703872

約数和(自身を除く): 138414651

約数列:

[1, 3, 9, 47, 141, 423, 688627, 2065881, 6197643, 32365469, 97096407, 291289221]

約数ペア:

[(1, 291289221), (3, 97096407), (9, 32365469), (47, 6197643), (141, 2065881), (423, 688627)]