20778844149

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1097}}^1\times {\mathrm{6397}}^1$

素因数の和:7554

約数の個数: 48

約数和(自身を含む): 35068819968

約数和(自身を除く): 14289975819

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 1097, 2961, 3291, 6397, 7679, 9873, 19191, 23037, 44779, 51559, 57573, 69111, 134337, 154677, 300659, 360913, 403011, 464031, 901977, 1082739, 2104613, 2705931, 3248217, 6313839, 7017509, 18941517, 21052527, 49122563, 63157581, 147367689, 329822923, 442103067, 989468769, 2308760461, 2968406307, 6926281383, 20778844149]

約数ペア:

[(1, 20778844149), (3, 6926281383), (7, 2968406307), (9, 2308760461), (21, 989468769), (47, 442103067), (63, 329822923), (141, 147367689), (329, 63157581), (423, 49122563), (987, 21052527), (1097, 18941517), (2961, 7017509), (3291, 6313839), (6397, 3248217), (7679, 2705931), (9873, 2104613), (19191, 1082739), (23037, 901977), (44779, 464031), (51559, 403011), (57573, 360913), (69111, 300659), (134337, 154677)]