18990455

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{449}}^1\times {\mathrm{769}}^1$

素因数の和:1234

約数の個数: 16

約数和(自身を含む): 24948000

約数和(自身を除く): 5957545

約数列:

[1, 5, 11, 55, 449, 769, 2245, 3845, 4939, 8459, 24695, 42295, 345281, 1726405, 3798091, 18990455]

約数ペア:

[(1, 18990455), (5, 3798091), (11, 1726405), (55, 345281), (449, 42295), (769, 24695), (2245, 8459), (3845, 4939)]