20419668

素因数分解:

$2^2\times 3^3\times {\mathrm{43}}^1\times {\mathrm{4397}}^1$

素因数の和:4453

約数の個数: 48

約数和(自身を含む): 54183360

約数和(自身を除く): 33763692

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 43, 54, 86, 108, 129, 172, 258, 387, 516, 774, 1161, 1548, 2322, 4397, 4644, 8794, 13191, 17588, 26382, 39573, 52764, 79146, 118719, 158292, 189071, 237438, 378142, 474876, 567213, 756284, 1134426, 1701639, 2268852, 3403278, 5104917, 6806556, 10209834, 20419668]

約数ペア:

[(1, 20419668), (2, 10209834), (3, 6806556), (4, 5104917), (6, 3403278), (9, 2268852), (12, 1701639), (18, 1134426), (27, 756284), (36, 567213), (43, 474876), (54, 378142), (86, 237438), (108, 189071), (129, 158292), (172, 118719), (258, 79146), (387, 52764), (516, 39573), (774, 26382), (1161, 17588), (1548, 13191), (2322, 8794), (4397, 4644)]