20419641

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{349}}^1$

素因数の和:566

約数の個数: 32

約数和(自身を含む): 33264000

約数和(自身を除く): 12844359

約数列:

[1, 3, 9, 11, 27, 33, 99, 197, 297, 349, 591, 1047, 1773, 2167, 3141, 3839, 5319, 6501, 9423, 11517, 19503, 34551, 58509, 68753, 103653, 206259, 618777, 756283, 1856331, 2268849, 6806547, 20419641]

約数ペア:

[(1, 20419641), (3, 6806547), (9, 2268849), (11, 1856331), (27, 756283), (33, 618777), (99, 206259), (197, 103653), (297, 68753), (349, 58509), (591, 34551), (1047, 19503), (1773, 11517), (2167, 9423), (3141, 6501), (3839, 5319)]