31990509

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{6451}}^1$

素因数の和:6505

約数の個数: 24

約数和(自身を含む): 50325600

約数和(自身を除く): 18335091

約数列:

[1, 3, 9, 19, 29, 57, 87, 171, 261, 551, 1653, 4959, 6451, 19353, 58059, 122569, 187079, 367707, 561237, 1103121, 1683711, 3554501, 10663503, 31990509]

約数ペア:

[(1, 31990509), (3, 10663503), (9, 3554501), (19, 1683711), (29, 1103121), (57, 561237), (87, 367707), (171, 187079), (261, 122569), (551, 58059), (1653, 19353), (4959, 6451)]