20581110

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20789}}^1$

素因数の和:20813

約数の個数: 48

約数和(自身を含む): 58378320

約数和(自身を除く): 37797210

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 20789, 41578, 62367, 103945, 124734, 187101, 207890, 228679, 311835, 374202, 457358, 623670, 686037, 935505, 1143395, 1372074, 1871010, 2058111, 2286790, 3430185, 4116222, 6860370, 10290555, 20581110]

約数ペア:

[(1, 20581110), (2, 10290555), (3, 6860370), (5, 4116222), (6, 3430185), (9, 2286790), (10, 2058111), (11, 1871010), (15, 1372074), (18, 1143395), (22, 935505), (30, 686037), (33, 623670), (45, 457358), (55, 374202), (66, 311835), (90, 228679), (99, 207890), (110, 187101), (165, 124734), (198, 103945), (330, 62367), (495, 41578), (990, 20789)]