20889780485

素因数分解:

$5^1\times 7^1\times {\mathrm{1871}}^1\times {\mathrm{319001}}^1$

素因数の和:320884

約数の個数: 16

約数和(自身を含む): 28664243712

約数和(自身を除く): 7774463227

約数列:

[1, 5, 7, 35, 1871, 9355, 13097, 65485, 319001, 1595005, 2233007, 11165035, 596850871, 2984254355, 4177956097, 20889780485]

約数ペア:

[(1, 20889780485), (5, 4177956097), (7, 2984254355), (35, 596850871), (1871, 11165035), (9355, 2233007), (13097, 1595005), (65485, 319001)]