20280309

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{33301}}^1$

素因数の和:33340

約数の個数: 16

約数和(自身を含む): 31969920

約数和(自身を除く): 11689611

約数列:

[1, 3, 7, 21, 29, 87, 203, 609, 33301, 99903, 233107, 699321, 965729, 2897187, 6760103, 20280309]

約数ペア:

[(1, 20280309), (3, 6760103), (7, 2897187), (21, 965729), (29, 699321), (87, 233107), (203, 99903), (609, 33301)]