81842319

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{77723}}^1$

素因数の和:77748

約数の個数: 20

約数和(自身を含む): 131664456

約数和(自身を除く): 49822137

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 77723, 233169, 699507, 1010399, 2098521, 3031197, 6295563, 9093591, 27280773, 81842319]

約数ペア:

[(1, 81842319), (3, 27280773), (9, 9093591), (13, 6295563), (27, 3031197), (39, 2098521), (81, 1010399), (117, 699507), (351, 233169), (1053, 77723)]