21612789

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{5077}}^1$

素因数の和:5137

約数の個数: 24

約数和(自身を含む): 34855392

約数和(自身を除く): 13242603

約数列:

[1, 3, 9, 11, 33, 43, 99, 129, 387, 473, 1419, 4257, 5077, 15231, 45693, 55847, 167541, 218311, 502623, 654933, 1964799, 2401421, 7204263, 21612789]

約数ペア:

[(1, 21612789), (3, 7204263), (9, 2401421), (11, 1964799), (33, 654933), (43, 502623), (99, 218311), (129, 167541), (387, 55847), (473, 45693), (1419, 15231), (4257, 5077)]