20886489

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{10501}}^1$

素因数の和:10537

約数の個数: 24

約数和(自身を含む): 34404552

約数和(自身を除く): 13518063

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989, 10501, 31503, 94509, 136513, 178517, 409539, 535551, 1228617, 1606653, 2320721, 6962163, 20886489]

約数ペア:

[(1, 20886489), (3, 6962163), (9, 2320721), (13, 1606653), (17, 1228617), (39, 535551), (51, 409539), (117, 178517), (153, 136513), (221, 94509), (663, 31503), (1989, 10501)]