13639995

素因数分解:

$3^4\times 5^1\times {\mathrm{33679}}^1$

素因数の和:33696

約数の個数: 20

約数和(自身を含む): 24451680

約数和(自身を除く): 10811685

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 33679, 101037, 168395, 303111, 505185, 909333, 1515555, 2727999, 4546665, 13639995]

約数ペア:

[(1, 13639995), (3, 4546665), (5, 2727999), (9, 1515555), (15, 909333), (27, 505185), (45, 303111), (81, 168395), (135, 101037), (405, 33679)]