21804420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{33037}}^1$

素因数の和:33060

約数の個数: 48

約数和(自身を含む): 66604608

約数和(自身を除く): 44800188

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 33037, 66074, 99111, 132148, 165185, 198222, 330370, 363407, 396444, 495555, 660740, 726814, 991110, 1090221, 1453628, 1817035, 1982220, 2180442, 3634070, 4360884, 5451105, 7268140, 10902210, 21804420]

約数ペア:

[(1, 21804420), (2, 10902210), (3, 7268140), (4, 5451105), (5, 4360884), (6, 3634070), (10, 2180442), (11, 1982220), (12, 1817035), (15, 1453628), (20, 1090221), (22, 991110), (30, 726814), (33, 660740), (44, 495555), (55, 396444), (60, 363407), (66, 330370), (110, 198222), (132, 165185), (165, 132148), (220, 99111), (330, 66074), (660, 33037)]