20959299

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{6451}}^1$

素因数の和:6495

約数の個数: 18

約数和(自身を含む): 31956756

約数和(自身を除く): 10997457

約数列:

[1, 3, 9, 19, 57, 171, 361, 1083, 3249, 6451, 19353, 58059, 122569, 367707, 1103121, 2328811, 6986433, 20959299]

約数ペア:

[(1, 20959299), (3, 6986433), (9, 2328811), (19, 1103121), (57, 367707), (171, 122569), (361, 58059), (1083, 19353), (3249, 6451)]