12991185

素因数分解:

$3^4\times 5^1\times {\mathrm{32077}}^1$

素因数の和:32094

約数の個数: 20

約数和(自身を含む): 23288628

約数和(自身を除く): 10297443

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 32077, 96231, 160385, 288693, 481155, 866079, 1443465, 2598237, 4330395, 12991185]

約数ペア:

[(1, 12991185), (3, 4330395), (5, 2598237), (9, 1443465), (15, 866079), (27, 481155), (45, 288693), (81, 160385), (135, 96231), (405, 32077)]