20684895

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17909}}^1$

素因数の和:17935

約数の個数: 32

約数和(自身を含む): 41264640

約数和(自身を除く): 20579745

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155, 17909, 53727, 89545, 125363, 196999, 268635, 376089, 590997, 626815, 984995, 1378993, 1880445, 2954985, 4136979, 6894965, 20684895]

約数ペア:

[(1, 20684895), (3, 6894965), (5, 4136979), (7, 2954985), (11, 1880445), (15, 1378993), (21, 984995), (33, 626815), (35, 590997), (55, 376089), (77, 268635), (105, 196999), (165, 125363), (231, 89545), (385, 53727), (1155, 17909)]