20542767

素因数分解:

$3^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{4093}}^1$

素因数の和:4342

約数の個数: 16

約数和(自身を含む): 31441920

約数和(自身を除く): 10899153

約数列:

[1, 3, 7, 21, 239, 717, 1673, 4093, 5019, 12279, 28651, 85953, 978227, 2934681, 6847589, 20542767]

約数ペア:

[(1, 20542767), (3, 6847589), (7, 2934681), (21, 978227), (239, 85953), (717, 28651), (1673, 12279), (4093, 5019)]