257880249

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{1307}}^1\times {\mathrm{1993}}^1$

素因数の和:3317

約数の個数: 24

約数和(自身を含む): 406871712

約数和(自身を除く): 148991463

約数列:

[1, 3, 9, 11, 33, 99, 1307, 1993, 3921, 5979, 11763, 14377, 17937, 21923, 43131, 65769, 129393, 197307, 2604851, 7814553, 23443659, 28653361, 85960083, 257880249]

約数ペア:

[(1, 257880249), (3, 85960083), (9, 28653361), (11, 23443659), (33, 7814553), (99, 2604851), (1307, 197307), (1993, 129393), (3921, 65769), (5979, 43131), (11763, 21923), (14377, 17937)]