20127708

素因数分解:

$2^2\times 3^2\times {\mathrm{409}}^1\times {\mathrm{1367}}^1$

素因数の和:1786

約数の個数: 36

約数和(自身を含む): 51040080

約数和(自身を除く): 30912372

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 409, 818, 1227, 1367, 1636, 2454, 2734, 3681, 4101, 4908, 5468, 7362, 8202, 12303, 14724, 16404, 24606, 49212, 559103, 1118206, 1677309, 2236412, 3354618, 5031927, 6709236, 10063854, 20127708]

約数ペア:

[(1, 20127708), (2, 10063854), (3, 6709236), (4, 5031927), (6, 3354618), (9, 2236412), (12, 1677309), (18, 1118206), (36, 559103), (409, 49212), (818, 24606), (1227, 16404), (1367, 14724), (1636, 12303), (2454, 8202), (2734, 7362), (3681, 5468), (4101, 4908)]