19966.0000000

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{24419}}^1$

素因数の和:24438

約数の個数: 16

約数和(自身を含む): 5128200

約数和(自身を除く): 2588624

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 24419, 48838, 97676, 195352, 317447, 634894, 1269788, 2539576]

約数ペア:

[(1, 2539576), (2, 1269788), (4, 634894), (8, 317447), (13, 195352), (26, 97676), (52, 48838), (104, 24419)]