9781155

素因数分解:

$3^4\times 5^1\times {\mathrm{24151}}^1$

素因数の和:24168

約数の個数: 20

約数和(自身を含む): 17534352

約数和(自身を除く): 7753197

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 24151, 72453, 120755, 217359, 362265, 652077, 1086795, 1956231, 3260385, 9781155]

約数ペア:

[(1, 9781155), (3, 3260385), (5, 1956231), (9, 1086795), (15, 652077), (27, 362265), (45, 217359), (81, 120755), (135, 72453), (405, 24151)]