20155569

素因数分解:

$3^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{4973}}^1$

素因数の和:5176

約数の個数: 16

約数和(自身を含む): 30878592

約数和(自身を除く): 10723023

約数列:

[1, 3, 7, 21, 193, 579, 1351, 4053, 4973, 14919, 34811, 104433, 959789, 2879367, 6718523, 20155569]

約数ペア:

[(1, 20155569), (3, 6718523), (7, 2879367), (21, 959789), (193, 104433), (579, 34811), (1351, 14919), (4053, 4973)]