12561381

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8669}}^1$

素因数の和:8705

約数の個数: 24

約数和(自身を含む): 21640320

約数和(自身を除く): 9078939

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 8669, 26007, 60683, 78021, 182049, 199387, 546147, 598161, 1395709, 1794483, 4187127, 12561381]

約数ペア:

[(1, 12561381), (3, 4187127), (7, 1794483), (9, 1395709), (21, 598161), (23, 546147), (63, 199387), (69, 182049), (161, 78021), (207, 60683), (483, 26007), (1449, 8669)]