12438765

素因数分解:

$3^4\times 5^1\times {\mathrm{30713}}^1$

素因数の和:30730

約数の個数: 20

約数和(自身を含む): 22298364

約数和(自身を除く): 9859599

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 30713, 92139, 153565, 276417, 460695, 829251, 1382085, 2487753, 4146255, 12438765]

約数ペア:

[(1, 12438765), (3, 4146255), (5, 2487753), (9, 1382085), (15, 829251), (27, 460695), (45, 276417), (81, 153565), (135, 92139), (405, 30713)]