21606828

素因数分解:

$2^2\times 3^1\times {\mathrm{53}}^2\times {\mathrm{641}}^1$

素因数の和:754

約数の個数: 36

約数和(自身を含む): 51465288

約数和(自身を除く): 29858460

約数列:

[1, 2, 3, 4, 6, 12, 53, 106, 159, 212, 318, 636, 641, 1282, 1923, 2564, 2809, 3846, 5618, 7692, 8427, 11236, 16854, 33708, 33973, 67946, 101919, 135892, 203838, 407676, 1800569, 3601138, 5401707, 7202276, 10803414, 21606828]

約数ペア:

[(1, 21606828), (2, 10803414), (3, 7202276), (4, 5401707), (6, 3601138), (12, 1800569), (53, 407676), (106, 203838), (159, 135892), (212, 101919), (318, 67946), (636, 33973), (641, 33708), (1282, 16854), (1923, 11236), (2564, 8427), (2809, 7692), (3846, 5618)]