20949423

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{349}}^1$

素因数の和:487

約数の個数: 32

約数和(自身を含む): 32659200

約数和(自身を除く): 11709777

約数列:

[1, 3, 11, 17, 33, 51, 107, 187, 321, 349, 561, 1047, 1177, 1819, 3531, 3839, 5457, 5933, 11517, 17799, 20009, 37343, 60027, 65263, 112029, 195789, 410773, 634831, 1232319, 1904493, 6983141, 20949423]

約数ペア:

[(1, 20949423), (3, 6983141), (11, 1904493), (17, 1232319), (33, 634831), (51, 410773), (107, 195789), (187, 112029), (321, 65263), (349, 60027), (561, 37343), (1047, 20009), (1177, 17799), (1819, 11517), (3531, 5933), (3839, 5457)]