20714883

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{269}}^1$

素因数の和:491

約数の個数: 32

約数和(自身を含む): 33523200

約数和(自身を除く): 12808317

約数列:

[1, 3, 7, 19, 21, 57, 133, 193, 269, 399, 579, 807, 1351, 1883, 3667, 4053, 5111, 5649, 11001, 15333, 25669, 35777, 51917, 77007, 107331, 155751, 363419, 986423, 1090257, 2959269, 6904961, 20714883]

約数ペア:

[(1, 20714883), (3, 6904961), (7, 2959269), (19, 1090257), (21, 986423), (57, 363419), (133, 155751), (193, 107331), (269, 77007), (399, 51917), (579, 35777), (807, 25669), (1351, 15333), (1883, 11001), (3667, 5649), (4053, 5111)]