18091865

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:241

約数の個数: 32

約数和(自身を含む): 24820992

約数和(自身を除く): 6729127

約数列:

[1, 5, 11, 41, 55, 71, 113, 205, 355, 451, 565, 781, 1243, 2255, 2911, 3905, 4633, 6215, 8023, 14555, 23165, 32021, 40115, 50963, 88253, 160105, 254815, 328943, 441265, 1644715, 3618373, 18091865]

約数ペア:

[(1, 18091865), (5, 3618373), (11, 1644715), (41, 441265), (55, 328943), (71, 254815), (113, 160105), (205, 88253), (355, 50963), (451, 40115), (565, 32021), (781, 23165), (1243, 14555), (2255, 8023), (2911, 6215), (3905, 4633)]