644080717

素因数分解:

$7^1\times {\mathrm{17}}^2\times {\mathrm{181}}^1\times {\mathrm{1759}}^1$

素因数の和:1981

約数の個数: 24

約数和(自身を含む): 786705920

約数和(自身を除く): 142625203

約数列:

[1, 7, 17, 119, 181, 289, 1267, 1759, 2023, 3077, 12313, 21539, 29903, 52309, 209321, 318379, 366163, 508351, 2228653, 3558457, 5412443, 37887101, 92011531, 644080717]

約数ペア:

[(1, 644080717), (7, 92011531), (17, 37887101), (119, 5412443), (181, 3558457), (289, 2228653), (1267, 508351), (1759, 366163), (2023, 318379), (3077, 209321), (12313, 52309), (21539, 29903)]