21268854145

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1284739}}^1$

素因数の和:1284805

約数の個数: 32

約数和(自身を含む): 32560450560

約数和(自身を除く): 11291596415

約数列:

[1, 5, 7, 11, 35, 43, 55, 77, 215, 301, 385, 473, 1505, 2365, 3311, 16555, 1284739, 6423695, 8993173, 14132129, 44965865, 55243777, 70660645, 98924903, 276218885, 386706439, 494624515, 607681547, 1933532195, 3038407735, 4253770829, 21268854145]

約数ペア:

[(1, 21268854145), (5, 4253770829), (7, 3038407735), (11, 1933532195), (35, 607681547), (43, 494624515), (55, 386706439), (77, 276218885), (215, 98924903), (301, 70660645), (385, 55243777), (473, 44965865), (1505, 14132129), (2365, 8993173), (3311, 6423695), (16555, 1284739)]