81331905

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{132247}}^1$

素因数の和:132296

約数の個数: 16

約数和(自身を含む): 133305984

約数和(自身を除く): 51974079

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 132247, 396741, 661235, 1983705, 5422127, 16266381, 27110635, 81331905]

約数ペア:

[(1, 81331905), (3, 27110635), (5, 16266381), (15, 5422127), (41, 1983705), (123, 661235), (205, 396741), (615, 132247)]