20419049

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{1289}}^1$

素因数の和:1400

約数の個数: 16

約数和(自身を含む): 24437760

約数和(自身を除く): 4018711

約数列:

[1, 7, 31, 73, 217, 511, 1289, 2263, 9023, 15841, 39959, 94097, 279713, 658679, 2917007, 20419049]

約数ペア:

[(1, 20419049), (7, 2917007), (31, 658679), (73, 279713), (217, 94097), (511, 39959), (1289, 15841), (2263, 9023)]