20123992077

素因数分解:

$3^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{4965209}}^1$

素因数の和:4965412

約数の個数: 16

約数和(自身を含む): 30824023680

約数和(自身を除く): 10700031603

約数列:

[1, 3, 7, 21, 193, 579, 1351, 4053, 4965209, 14895627, 34756463, 104269389, 958285337, 2874856011, 6707997359, 20123992077]

約数ペア:

[(1, 20123992077), (3, 6707997359), (7, 2874856011), (21, 958285337), (193, 104269389), (579, 34756463), (1351, 14895627), (4053, 4965209)]