21388554

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{108023}}^1$

素因数の和:108042

約数の個数: 24

約数和(自身を含む): 50555232

約数和(自身を除く): 29166678

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198, 108023, 216046, 324069, 648138, 972207, 1188253, 1944414, 2376506, 3564759, 7129518, 10694277, 21388554]

約数ペア:

[(1, 21388554), (2, 10694277), (3, 7129518), (6, 3564759), (9, 2376506), (11, 1944414), (18, 1188253), (22, 972207), (33, 648138), (66, 324069), (99, 216046), (198, 108023)]