21287574

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{15359}}^1$

素因数の和:15385

約数の個数: 48

約数和(自身を含む): 57507840

約数和(自身を除く): 36220266

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 63, 66, 77, 99, 126, 154, 198, 231, 462, 693, 1386, 15359, 30718, 46077, 92154, 107513, 138231, 168949, 215026, 276462, 322539, 337898, 506847, 645078, 967617, 1013694, 1182643, 1520541, 1935234, 2365286, 3041082, 3547929, 7095858, 10643787, 21287574]

約数ペア:

[(1, 21287574), (2, 10643787), (3, 7095858), (6, 3547929), (7, 3041082), (9, 2365286), (11, 1935234), (14, 1520541), (18, 1182643), (21, 1013694), (22, 967617), (33, 645078), (42, 506847), (63, 337898), (66, 322539), (77, 276462), (99, 215026), (126, 168949), (154, 138231), (198, 107513), (231, 92154), (462, 46077), (693, 30718), (1386, 15359)]