2881899

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{757}}^1$

素因数の和:816

約数の個数: 20

約数和(自身を含む): 4402464

約数和(自身を除く): 1520565

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 757, 1269, 2271, 3807, 6813, 20439, 35579, 61317, 106737, 320211, 960633, 2881899]

約数ペア:

[(1, 2881899), (3, 960633), (9, 320211), (27, 106737), (47, 61317), (81, 35579), (141, 20439), (423, 6813), (757, 3807), (1269, 2271)]