12961215

素因数分解:

$3^4\times 5^1\times {\mathrm{32003}}^1$

素因数の和:32020

約数の個数: 20

約数和(自身を含む): 23234904

約数和(自身を除く): 10273689

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 32003, 96009, 160015, 288027, 480045, 864081, 1440135, 2592243, 4320405, 12961215]

約数ペア:

[(1, 12961215), (3, 4320405), (5, 2592243), (9, 1440135), (15, 864081), (27, 480045), (45, 288027), (81, 160015), (135, 96009), (405, 32003)]