18618985

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{353}}^1$

素因数の和:513

約数の個数: 32

約数和(自身を含む): 28138752

約数和(自身を除く): 9519767

約数列:

[1, 5, 7, 11, 35, 55, 77, 137, 353, 385, 685, 959, 1507, 1765, 2471, 3883, 4795, 7535, 10549, 12355, 19415, 27181, 48361, 52745, 135905, 241805, 338527, 531971, 1692635, 2659855, 3723797, 18618985]

約数ペア:

[(1, 18618985), (5, 3723797), (7, 2659855), (11, 1692635), (35, 531971), (55, 338527), (77, 241805), (137, 135905), (353, 52745), (385, 48361), (685, 27181), (959, 19415), (1507, 12355), (1765, 10549), (2471, 7535), (3883, 4795)]