145025721

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{26723}}^1$

素因数の和:26802

約数の個数: 20

約数和(自身を含む): 219885072

約数和(自身を除く): 74859351

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 5427, 26723, 80169, 240507, 721521, 1790441, 2164563, 5371323, 16113969, 48341907, 145025721]

約数ペア:

[(1, 145025721), (3, 48341907), (9, 16113969), (27, 5371323), (67, 2164563), (81, 1790441), (201, 721521), (603, 240507), (1809, 80169), (5427, 26723)]