20338239

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{3727}}^1$

素因数の和:3854

約数の個数: 16

約数和(自身を含む): 28988928

約数和(自身を除く): 8650689

約数列:

[1, 3, 17, 51, 107, 321, 1819, 3727, 5457, 11181, 63359, 190077, 398789, 1196367, 6779413, 20338239]

約数ペア:

[(1, 20338239), (3, 6779413), (17, 1196367), (51, 398789), (107, 190077), (321, 63359), (1819, 11181), (3727, 5457)]