257424909

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{422701}}^1$

素因数の和:422740

約数の個数: 16

約数和(自身を含む): 405793920

約数和(自身を除く): 148369011

約数列:

[1, 3, 7, 21, 29, 87, 203, 609, 422701, 1268103, 2958907, 8876721, 12258329, 36774987, 85808303, 257424909]

約数ペア:

[(1, 257424909), (3, 85808303), (7, 36774987), (21, 12258329), (29, 8876721), (87, 2958907), (203, 1268103), (609, 422701)]