64504881

素因数分解:

$3^2\times 7^1\times {\mathrm{787}}^1\times {\mathrm{1301}}^1$

素因数の和:2101

約数の個数: 24

約数和(自身を含む): 106701504

約数和(自身を除く): 42196623

約数列:

[1, 3, 7, 9, 21, 63, 787, 1301, 2361, 3903, 5509, 7083, 9107, 11709, 16527, 27321, 49581, 81963, 1023887, 3071661, 7167209, 9214983, 21501627, 64504881]

約数ペア:

[(1, 64504881), (3, 21501627), (7, 9214983), (9, 7167209), (21, 3071661), (63, 1023887), (787, 81963), (1301, 49581), (2361, 27321), (3903, 16527), (5509, 11709), (7083, 9107)]