20405799

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{83}}^1\times {\mathrm{463}}^1$

素因数の和:611

約数の個数: 24

約数和(自身を含む): 30401280

約数和(自身を除く): 9995481

約数列:

[1, 3, 9, 59, 83, 177, 249, 463, 531, 747, 1389, 4167, 4897, 14691, 27317, 38429, 44073, 81951, 115287, 245853, 345861, 2267311, 6801933, 20405799]

約数ペア:

[(1, 20405799), (3, 6801933), (9, 2267311), (59, 345861), (83, 245853), (177, 115287), (249, 81951), (463, 44073), (531, 38429), (747, 27317), (1389, 14691), (4167, 4897)]