81220221

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{4153}}^1$

素因数の和:4253

約数の個数: 24

約数和(自身を含む): 122476536

約数和(自身を除く): 41256315

約数列:

[1, 3, 9, 41, 53, 123, 159, 369, 477, 2173, 4153, 6519, 12459, 19557, 37377, 170273, 220109, 510819, 660327, 1532457, 1980981, 9024469, 27073407, 81220221]

約数ペア:

[(1, 81220221), (3, 27073407), (9, 9024469), (41, 1980981), (53, 1532457), (123, 660327), (159, 510819), (369, 220109), (477, 170273), (2173, 37377), (4153, 19557), (6519, 12459)]