21512853

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{929}}^1$

素因数の和:1049

約数の個数: 24

約数和(自身を含む): 32497920

約数和(自身を除く): 10985067

約数列:

[1, 3, 9, 31, 83, 93, 249, 279, 747, 929, 2573, 2787, 7719, 8361, 23157, 28799, 77107, 86397, 231321, 259191, 693963, 2390317, 7170951, 21512853]

約数ペア:

[(1, 21512853), (3, 7170951), (9, 2390317), (31, 693963), (83, 259191), (93, 231321), (249, 86397), (279, 77107), (747, 28799), (929, 23157), (2573, 8361), (2787, 7719)]