20889309

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{34301}}^1$

素因数の和:34340

約数の個数: 16

約数和(自身を含む): 32929920

約数和(自身を除く): 12040611

約数列:

[1, 3, 7, 21, 29, 87, 203, 609, 34301, 102903, 240107, 720321, 994729, 2984187, 6963103, 20889309]

約数ペア:

[(1, 20889309), (3, 6963103), (7, 2984187), (21, 994729), (29, 720321), (87, 240107), (203, 102903), (609, 34301)]