2561967

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:231

約数の個数: 24

約数和(自身を含む): 3891888

約数和(自身を除く): 1329921

約数列:

[1, 3, 9, 41, 53, 123, 131, 159, 369, 393, 477, 1179, 2173, 5371, 6519, 6943, 16113, 19557, 20829, 48339, 62487, 284663, 853989, 2561967]

約数ペア:

[(1, 2561967), (3, 853989), (9, 284663), (41, 62487), (53, 48339), (123, 20829), (131, 19557), (159, 16113), (369, 6943), (393, 6519), (477, 5371), (1179, 2173)]