2912821155

素因数分解:

$3^4\times 5^1\times {\mathrm{7192151}}^1$

素因数の和:7192168

約数の個数: 20

約数和(自身を含む): 5221502352

約数和(自身を除く): 2308681197

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 7192151, 21576453, 35960755, 64729359, 107882265, 194188077, 323646795, 582564231, 970940385, 2912821155]

約数ペア:

[(1, 2912821155), (3, 970940385), (5, 582564231), (9, 323646795), (15, 194188077), (27, 107882265), (45, 64729359), (81, 35960755), (135, 21576453), (405, 7192151)]