256808538

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{2038163}}^1$

素因数の和:2038178

約数の個数: 24

約数和(自身を含む): 635907168

約数和(自身を除く): 379098630

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 2038163, 4076326, 6114489, 12228978, 14267141, 18343467, 28534282, 36686934, 42801423, 85602846, 128404269, 256808538]

約数ペア:

[(1, 256808538), (2, 128404269), (3, 85602846), (6, 42801423), (7, 36686934), (9, 28534282), (14, 18343467), (18, 14267141), (21, 12228978), (42, 6114489), (63, 4076326), (126, 2038163)]