1980517

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{89}}^1$

素因数の和:141

約数の個数: 24

約数和(自身を含む): 2652480

約数和(自身を除く): 671963

約数列:

[1, 7, 11, 17, 77, 89, 119, 187, 289, 623, 979, 1309, 1513, 2023, 3179, 6853, 10591, 16643, 22253, 25721, 116501, 180047, 282931, 1980517]

約数ペア:

[(1, 1980517), (7, 282931), (11, 180047), (17, 116501), (77, 25721), (89, 22253), (119, 16643), (187, 10591), (289, 6853), (623, 3179), (979, 2023), (1309, 1513)]