81225046

素因数分解:

$2^1\times 7^2\times {\mathrm{643}}^1\times {\mathrm{1289}}^1$

素因数の和:1948

約数の個数: 24

約数和(自身を含む): 142059960

約数和(自身を除く): 60834914

約数列:

[1, 2, 7, 14, 49, 98, 643, 1286, 1289, 2578, 4501, 9002, 9023, 18046, 31507, 63014, 63161, 126322, 828827, 1657654, 5801789, 11603578, 40612523, 81225046]

約数ペア:

[(1, 81225046), (2, 40612523), (7, 11603578), (14, 5801789), (49, 1657654), (98, 828827), (643, 126322), (1286, 63161), (1289, 63014), (2578, 31507), (4501, 18046), (9002, 9023)]