21164836

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{6247}}^1$

素因数の和:6280

約数の個数: 36

約数和(自身を含む): 46535104

約数和(自身を除く): 25370268

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 121, 154, 242, 308, 484, 847, 1694, 3388, 6247, 12494, 24988, 43729, 68717, 87458, 137434, 174916, 274868, 481019, 755887, 962038, 1511774, 1924076, 3023548, 5291209, 10582418, 21164836]

約数ペア:

[(1, 21164836), (2, 10582418), (4, 5291209), (7, 3023548), (11, 1924076), (14, 1511774), (22, 962038), (28, 755887), (44, 481019), (77, 274868), (121, 174916), (154, 137434), (242, 87458), (308, 68717), (484, 43729), (847, 24988), (1694, 12494), (3388, 6247)]