21047220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{116929}}^1$

素因数の和:116944

約数の個数: 36

約数和(自身を含む): 63843780

約数和(自身を除く): 42796560

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 116929, 233858, 350787, 467716, 584645, 701574, 1052361, 1169290, 1403148, 1753935, 2104722, 2338580, 3507870, 4209444, 5261805, 7015740, 10523610, 21047220]

約数ペア:

[(1, 21047220), (2, 10523610), (3, 7015740), (4, 5261805), (5, 4209444), (6, 3507870), (9, 2338580), (10, 2104722), (12, 1753935), (15, 1403148), (18, 1169290), (20, 1052361), (30, 701574), (36, 584645), (45, 467716), (60, 350787), (90, 233858), (180, 116929)]