21078012

素因数分解:

$2^2\times 3^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{1637}}^1$

素因数の和:1710

約数の個数: 48

約数和(自身を含む): 52284960

約数和(自身を除く): 31206948

約数列:

[1, 2, 3, 4, 6, 12, 29, 37, 58, 74, 87, 111, 116, 148, 174, 222, 348, 444, 1073, 1637, 2146, 3219, 3274, 4292, 4911, 6438, 6548, 9822, 12876, 19644, 47473, 60569, 94946, 121138, 142419, 181707, 189892, 242276, 284838, 363414, 569676, 726828, 1756501, 3513002, 5269503, 7026004, 10539006, 21078012]

約数ペア:

[(1, 21078012), (2, 10539006), (3, 7026004), (4, 5269503), (6, 3513002), (12, 1756501), (29, 726828), (37, 569676), (58, 363414), (74, 284838), (87, 242276), (111, 189892), (116, 181707), (148, 142419), (174, 121138), (222, 94946), (348, 60569), (444, 47473), (1073, 19644), (1637, 12876), (2146, 9822), (3219, 6548), (3274, 6438), (4292, 4911)]