20367309

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{293}}^1$

素因数の和:389

約数の個数: 32

約数和(自身を含む): 30481920

約数和(自身を除く): 10114611

約数列:

[1, 3, 17, 29, 47, 51, 87, 141, 293, 493, 799, 879, 1363, 1479, 2397, 4089, 4981, 8497, 13771, 14943, 23171, 25491, 41313, 69513, 144449, 234107, 399359, 433347, 702321, 1198077, 6789103, 20367309]

約数ペア:

[(1, 20367309), (3, 6789103), (17, 1198077), (29, 702321), (47, 433347), (51, 399359), (87, 234107), (141, 144449), (293, 69513), (493, 41313), (799, 25491), (879, 23171), (1363, 14943), (1479, 13771), (2397, 8497), (4089, 4981)]