20677668

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{3643}}^1$

素因数の和:3704

約数の個数: 48

約数和(自身を含む): 53872896

約数和(自身を除く): 33195228

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 43, 44, 66, 86, 129, 132, 172, 258, 473, 516, 946, 1419, 1892, 2838, 3643, 5676, 7286, 10929, 14572, 21858, 40073, 43716, 80146, 120219, 156649, 160292, 240438, 313298, 469947, 480876, 626596, 939894, 1723139, 1879788, 3446278, 5169417, 6892556, 10338834, 20677668]

約数ペア:

[(1, 20677668), (2, 10338834), (3, 6892556), (4, 5169417), (6, 3446278), (11, 1879788), (12, 1723139), (22, 939894), (33, 626596), (43, 480876), (44, 469947), (66, 313298), (86, 240438), (129, 160292), (132, 156649), (172, 120219), (258, 80146), (473, 43716), (516, 40073), (946, 21858), (1419, 14572), (1892, 10929), (2838, 7286), (3643, 5676)]