21284318

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{457}}^1$

素因数の和:572

約数の個数: 32

約数和(自身を含む): 36603360

約数和(自身を除く): 15319042

約数列:

[1, 2, 11, 22, 29, 58, 73, 146, 319, 457, 638, 803, 914, 1606, 2117, 4234, 5027, 10054, 13253, 23287, 26506, 33361, 46574, 66722, 145783, 291566, 366971, 733942, 967469, 1934938, 10642159, 21284318]

約数ペア:

[(1, 21284318), (2, 10642159), (11, 1934938), (22, 967469), (29, 733942), (58, 366971), (73, 291566), (146, 145783), (319, 66722), (457, 46574), (638, 33361), (803, 26506), (914, 23287), (1606, 13253), (2117, 10054), (4234, 5027)]