20353389

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1759}}^1$

素因数の和:1817

約数の個数: 32

約数和(自身を含む): 33792000

約数和(自身を除く): 13438611

約数列:

[1, 3, 7, 19, 21, 29, 57, 87, 133, 203, 399, 551, 609, 1653, 1759, 3857, 5277, 11571, 12313, 33421, 36939, 51011, 100263, 153033, 233947, 357077, 701841, 969209, 1071231, 2907627, 6784463, 20353389]

約数ペア:

[(1, 20353389), (3, 6784463), (7, 2907627), (19, 1071231), (21, 969209), (29, 701841), (57, 357077), (87, 233947), (133, 153033), (203, 100263), (399, 51011), (551, 36939), (609, 33421), (1653, 12313), (1759, 11571), (3857, 5277)]