20284803

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^2\times {\mathrm{887}}^1$

素因数の和:925

約数の個数: 48

約数和(自身を含む): 37793280

約数和(自身を除く): 17508477

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 121, 189, 231, 297, 363, 693, 847, 887, 1089, 2079, 2541, 2661, 3267, 6209, 7623, 7983, 9757, 18627, 22869, 23949, 29271, 55881, 68299, 87813, 107327, 167643, 204897, 263439, 321981, 614691, 751289, 965943, 1844073, 2253867, 2897829, 6761601, 20284803]

約数ペア:

[(1, 20284803), (3, 6761601), (7, 2897829), (9, 2253867), (11, 1844073), (21, 965943), (27, 751289), (33, 614691), (63, 321981), (77, 263439), (99, 204897), (121, 167643), (189, 107327), (231, 87813), (297, 68299), (363, 55881), (693, 29271), (847, 23949), (887, 22869), (1089, 18627), (2079, 9757), (2541, 7983), (2661, 7623), (3267, 6209)]