20803885137

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{17380021}}^1$

素因数の和:17380053

約数の個数: 24

約数和(自身を含む): 36150445760

約数和(自身を除く): 15346560623

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 17380021, 52140063, 121660147, 156420189, 330220399, 364980441, 990661197, 1094941323, 2311542793, 2971983591, 6934628379, 20803885137]

約数ペア:

[(1, 20803885137), (3, 6934628379), (7, 2971983591), (9, 2311542793), (19, 1094941323), (21, 990661197), (57, 364980441), (63, 330220399), (133, 156420189), (171, 121660147), (399, 52140063), (1197, 17380021)]