21078756

素因数分解:

$2^2\times 3^2\times {\mathrm{41}}^1\times {\mathrm{14281}}^1$

素因数の和:14332

約数の個数: 36

約数和(自身を含む): 54585804

約数和(自身を除く): 33507048

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 41, 82, 123, 164, 246, 369, 492, 738, 1476, 14281, 28562, 42843, 57124, 85686, 128529, 171372, 257058, 514116, 585521, 1171042, 1756563, 2342084, 3513126, 5269689, 7026252, 10539378, 21078756]

約数ペア:

[(1, 21078756), (2, 10539378), (3, 7026252), (4, 5269689), (6, 3513126), (9, 2342084), (12, 1756563), (18, 1171042), (36, 585521), (41, 514116), (82, 257058), (123, 171372), (164, 128529), (246, 85686), (369, 57124), (492, 42843), (738, 28562), (1476, 14281)]