20945331

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{647}}^1$

素因数の和:776

約数の個数: 32

約数和(自身を含む): 34214400

約数和(自身を除く): 13269069

約数列:

[1, 3, 9, 11, 27, 33, 99, 109, 297, 327, 647, 981, 1199, 1941, 2943, 3597, 5823, 7117, 10791, 17469, 21351, 32373, 64053, 70523, 192159, 211569, 634707, 775753, 1904121, 2327259, 6981777, 20945331]

約数ペア:

[(1, 20945331), (3, 6981777), (9, 2327259), (11, 1904121), (27, 775753), (33, 634707), (99, 211569), (109, 192159), (297, 70523), (327, 64053), (647, 32373), (981, 21351), (1199, 17469), (1941, 10791), (2943, 7117), (3597, 5823)]