20541689

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{659}}^1$

素因数の和:800

約数の個数: 16

約数和(自身を含む): 24224640

約数和(自身を除く): 3682951

約数列:

[1, 7, 61, 73, 427, 511, 659, 4453, 4613, 31171, 40199, 48107, 281393, 336749, 2934527, 20541689]

約数ペア:

[(1, 20541689), (7, 2934527), (61, 336749), (73, 281393), (427, 48107), (511, 40199), (659, 31171), (4453, 4613)]