21137328

素因数分解:

$2^4\times 3^3\times {\mathrm{113}}^1\times {\mathrm{433}}^1$

素因数の和:563

約数の個数: 80

約数和(自身を含む): 61350240

約数和(自身を除く): 40212912

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 113, 144, 216, 226, 339, 432, 433, 452, 678, 866, 904, 1017, 1299, 1356, 1732, 1808, 2034, 2598, 2712, 3051, 3464, 3897, 4068, 5196, 5424, 6102, 6928, 7794, 8136, 10392, 11691, 12204, 15588, 16272, 20784, 23382, 24408, 31176, 46764, 48816, 48929, 62352, 93528, 97858, 146787, 187056, 195716, 293574, 391432, 440361, 587148, 782864, 880722, 1174296, 1321083, 1761444, 2348592, 2642166, 3522888, 5284332, 7045776, 10568664, 21137328]

約数ペア:

[(1, 21137328), (2, 10568664), (3, 7045776), (4, 5284332), (6, 3522888), (8, 2642166), (9, 2348592), (12, 1761444), (16, 1321083), (18, 1174296), (24, 880722), (27, 782864), (36, 587148), (48, 440361), (54, 391432), (72, 293574), (108, 195716), (113, 187056), (144, 146787), (216, 97858), (226, 93528), (339, 62352), (432, 48929), (433, 48816), (452, 46764), (678, 31176), (866, 24408), (904, 23382), (1017, 20784), (1299, 16272), (1356, 15588), (1732, 12204), (1808, 11691), (2034, 10392), (2598, 8136), (2712, 7794), (3051, 6928), (3464, 6102), (3897, 5424), (4068, 5196)]