20589065

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{4423}}^1$

素因数の和:4461

約数の個数: 24

約数和(自身を含む): 30260160

約数和(自身を除く): 9671095

約数列:

[1, 5, 7, 19, 35, 49, 95, 133, 245, 665, 931, 4423, 4655, 22115, 30961, 84037, 154805, 216727, 420185, 588259, 1083635, 2941295, 4117813, 20589065]

約数ペア:

[(1, 20589065), (5, 4117813), (7, 2941295), (19, 1083635), (35, 588259), (49, 420185), (95, 216727), (133, 154805), (245, 84037), (665, 30961), (931, 22115), (4423, 4655)]