20578437

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{1907}}^1$

素因数の和:2033

約数の個数: 24

約数和(自身を含む): 32741280

約数和(自身を除く): 12162843

約数列:

[1, 3, 9, 11, 33, 99, 109, 327, 981, 1199, 1907, 3597, 5721, 10791, 17163, 20977, 62931, 188793, 207863, 623589, 1870767, 2286493, 6859479, 20578437]

約数ペア:

[(1, 20578437), (3, 6859479), (9, 2286493), (11, 1870767), (33, 623589), (99, 207863), (109, 188793), (327, 62931), (981, 20977), (1199, 17163), (1907, 10791), (3597, 5721)]